Prose

For both a direct quotation and a direct quotation within a sentence:
Put the author’s last name and the book’s page number in parenthesis before the period and after the quotation mark.

Examples:
Mrs. Pontellier’s eyes were quick and bright; they were a yellowish brown, about the color of her hair. She had a way of turning them swiftly upon an object and holding them there as if lost in some inward maze of contemplation or thought (Chopin 3).
OR
Mrs. Pontellier’s characterization reflects to no small degree on her outward appearance, specifically her eyes that “were quick and bright; they were a yellowish brown, about the color of her hair. She had a way of turning them swiftly upon an object and holding them there as if lost in some inward maze of contemplation or thought” (Chopin 3).

If you have mentioned the author’s name in your sentence:
Put only the page number in parenthesis, before the period and after the quotation mark.

Example:
Kate Chopin’s protagonist, Mrs. Pontellier, had eyes that “were quick and bright; they were a yellowish brown, about the color of her hair” (3).

Block quotation, for quotations that are more than four lines (indent, do not use quotation marks):
Put the author’s last name and the page number in parenthesis after the period and do not use quotation marks unless they appear in the text (if, for example, you’re quoting speech).

Example:

The narrator emphasizes the protagonist’s outward appearance in order to foreshadow her future rebelliousness:

Mrs. Pontellier’s eyes were quick and bright; they were a yellowish brown, about the color of her hair. She had a way of turning them swiftly upon an object and holding them there as if lost in some inward maze of contemplation or thought.
Her eyebrows were a shade darker than her hair. They were thick and almost horizontal, emphasizing the depth of her eyes. She was rather handsome than beautiful. Her face was captivating by reason of a certain frankness of expression and a contradictory subtle play of features. Her manner was engaging. (Chopin 3)