Dyfyniad APA

Wellek, R., & Warren, A. (1949). Theory of literature ([1st ed.].). Harcourt, Brace.

Dyfyniad Arddull Chicago

Wellek, Rene, and Austin Warren. Theory of Literature. [1st ed.]. New York: Harcourt, Brace, 1949.

Dyfyniad MLA

Wellek, Rene, and Austin Warren. Theory of Literature. [1st ed.]. Harcourt, Brace, 1949.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.