Gaya APA

Bertram, B., S., G, R. (2001). Philosophical Essays On Teaching (Trawas) . Philadelphia: J.B. Lippincott Company.

Gaya MLA

Bertram, Bandman., S., Guttchen, Robert. "Philosophical Essays On Teaching (Trawas)". Philadelphia: J.B. Lippincott Company, 2001. Text.