APA (7th ed.) Zitazioa

Pugh, G. T. (1955). Guide to research writing. Houghton Mifflin Company.

Chicago Style (17th ed.) Zitazioa

Pugh, Griffith Thompson. Guide to Research Writing. Boston: Houghton Mifflin Company, 1955.

MLA (9th ed.) Zitazioa

Pugh, Griffith Thompson. Guide to Research Writing. Houghton Mifflin Company, 1955.