Set up the quotation. Always lead into a quotation to inform readers why this quote is important to your work. You should always begin a paragraph with your own words. Use only the most important part of the quote and paraphrase the rest into your own words.
Give credit to the source. Always make sure you include the person's name. The first time a person is referenced, you should use both first and last names. Each time after that should consist of only the person's last name. Using a professional or expert as a source will always lend credibility to your research paper.
Start and end the quotation with quotation marks. This will clue the readers to the fact that this is not your own words.
Use brackets to indicate words that you have added to the quote. Sometimes a quote does not make sense when taken out of its context. Adding a word or two in brackets will show readers that you added the words and will help to clarify the quote.