When you quote more than four typed lines of prose or more than three lines of poetry, set off the quotation by indenting it one inch from the left margin.
Long quotations should be introduced by an informative sentence, usually followed by a colon. Quotation marks are unnecessary because the indented format tells readers that the words are taken word-for-word from the source.
Botan and Vorvoreanu examine the role of gender in company practices of electronic surveillance:
There has never been accurate documentation of the extent of gender differences in surveillance, but by the middle 1990s, estimates of the proportion of surveilled employees that were women ranged from 75% to 85%. . . . Ironically, this gender imbalance in workplace surveillance may be evening out today because advances in surveillance technology are making surveillance of traditionally male dominated fields, such as long-distance truck driving, cheap, easy, and frequently unobtrusive. (127)
Notice that at the end of an indented quotation the parenthetical citation goes outside the final mark of punctuation. (When a quotation is run into your text, the opposite is true. See the sample citations here.)
Exercise: Integrating sources in MLA papers 1
Exercise: Integrating sources in MLA papers 2
Exercise: Integrating sources in MLA papers 3
Exercise: Integrating sources in MLA papers 4