APA (7th ed.) Zitazioa

Voight, R. C. (1971). Invitation to learning: The learning center handbook. Acropolis Books.

Chicago Style (17th ed.) Zitazioa

Voight, Ralph Claude. Invitation to Learning: The Learning Center Handbook. Washington: Acropolis Books, 1971.

MLA (9th ed.) Zitazioa

Voight, Ralph Claude. Invitation to Learning: The Learning Center Handbook. Acropolis Books, 1971.