Write down the name(s) of the essay's author(s), the title of the book or journal the essay is in, date of publication, journal number and date -- if applicable -- , the page numbers of the essay itself, publication house and city and state. If you accessed the essay online, you will need the website address and the date you accessed the essay.
Format the citation for a book as follows -- "Author(s) last names, first initials. (year of publication). Essay Title. In editors' names, last first then first initials, book title typed in italics (page numbers). City: Publishing House Name." If the author's name is unknown, move the essay title to the beginning followed by the year of publication. If you accessed the essay online, the format is "Essay Title. (year of publication). Title of website, typed in italics. Retrieved Month, Day, Year from database or online index where you got the source."
Format an essay printed in a journal in the format of any article in a journal -- "author. (year of publication). Title. Journal title, journal volume, page numbers. If it was accessed online through a database, add Retrieved month, day, year from the name of the database." Alternately, if it came from a website, add "Retrieved month, day, year from website address."