In citing the work in the text of your paper, you simply include the author and date information of your cited work. You might either paraphrase the work and include the information in your sentence, or you can put the information in parentheses. For instance:
Krugman (2007) argues that the widening economic inequality between rich and poor has been exacerbated by the ease with which stock-traders have been allowed to short-sell companies.
OR
The widening economic inequality between rich and poor has been exacerbated by the ease with which stock-traders have been allowed to short-sell companies (Krugman, 2007).
If there are two authors for the cited work, you must include both names, whether within the prose of your writing or in a parenthetical.
According to Sachs and Larrain (1999), when small countries enduring financial crises switch their currencies to the dollar, they actually further endanger their economies.
OR
When small countries enduring financial crises switch their currencies to the dollar, they actually further endanger their economies (Sachs & Larrain 1999).
If there are more than two authors in your cited work, include all the names in your first citation, following the same guidelines as if there were two authors, but then in subsequent citations you may use the name of the first author's name, and then "et al."
Be sure to remember the period in "al." it is abbreviation of the Latin word "alia," meaning "other."
If you take a direct quote, you must indicate the exact page number in your citation. The page number will come after the publishing year, separated by a comma. For instance:
Aspremont et al. (1996, 623) argue that "the enlarged model does not lead to a general equilibrium analysis until the wage rate...is adjusted competitively or strategically."
OR
Critics of Stiglitz's work claim that his "enlarged model does not lead to a general equilibrium analysis until the wage rate...is adjusted competitively or strategically" (Aspremont et al. 1996, 623).
Your list of references is where you must give full citation information. Make sure that all entries are in the "hanging-indent" formation, where any citations taking up more than one line have subsequent lines indented. Each piece of information is separated by periods except for a journal's name and edition number. Finally, the book or journal title is written in italics, while the rest is not.
A single author work journal reference would look as follows:
Bondonski, Ilya. 1989. Caring among the forgotten. Journal of Social Activism 14 (Fall): 112-34.
Note that the "Journal of Social Activism" should be in italics.
A single author book reference will look like this:
Sedgwick, T., & Veto, V. Thoughts on the proposed annexation of Texas to the United States. New-York: D. Fanshaw, 1844.
Note that "Thoughts on the proposed annexation of Texas to the United States" ought to be in italics, and also the colon in between the publishing location and the publisher name.
In a reference with multiple authors, only the first author has his last name given first, while the other authors have their names listed regularly. A journal reference would look as follows:
D'Aspremont, Claude, Rodolphe Dos Santos Ferreira, and Louis-Andre Gerard-Varet. On the Dixit-Stiglitz Model of Monopolistic Competition. The American Economic Review 86 (June): 623-629.
Note again that the journal title, "The American Economic Review" should be in italics, and that there is a colon before the pagination range.
For examples with more complicated citations involving translators, editors, multiple editions, it is always advisable to consult the official Chicago Manual of Style itself.