Use quotation marks to designate that all the words in the quote are exactly as the author wrote them.
Paraphrase
Use your own words to provide the essential information and ideas of someone else.
Do not use quotations marks.
Summarize
Write a brief statement or account of the main points of a lengthy idea of someone else.
Do not use quotation marks.
Credit
ALWAYS give credit when you quote, paraphrase, or summarize. Provide an in-text citation and include a citation in your bibliography (Bibliography, References, Works Cited).
Consult the appropriate style manual for information on how to cite in-text and in your bibliography (MLA, APA, Turabian, Chicago, etc.).