APA način citiranja (7. izdanje)

Billett, R. O. (1940). Fundamental of secondary-school teaching: With emphasis on the unit method. Houghthon Mifflin Company.

Čikaški stil citiranja (17. izdanje)

Billett, Roy O. Fundamental of Secondary-school Teaching: With Emphasis on the Unit Method. Houghthon Mifflin Company, 1940.

MLA način citiranja (8. izdanje)

Billett, Roy O. Fundamental of Secondary-school Teaching: With Emphasis on the Unit Method. Houghthon Mifflin Company, 1940.