APA (7th ed.) Zitazioa

Watkins, F. C. (1978). Practical English Handbook. Houghton Mifflin.

Chicago Style (17th ed.) Zitazioa

Watkins, Floyd C. Practical English Handbook. Boston: Houghton Mifflin, 1978.

MLA (9th ed.) Zitazioa

Watkins, Floyd C. Practical English Handbook. Houghton Mifflin, 1978.