APA (7th ed.) Zitazioa

Hughes, J. L. (1962). Programed instruction for schools and industry. Science Research Associates.

Chicago Style (17th ed.) Zitazioa

Hughes, John Leo. Programed Instruction for Schools and Industry. Chicago: Science Research Associates, 1962.

MLA (9th ed.) Zitazioa

Hughes, John Leo. Programed Instruction for Schools and Industry. Science Research Associates, 1962.