Gaya APA

GERLACH, V, S. et al (1980). Teaching and media : a systematic approach/ Vernon S. Gerlach, Donald P. Ely, Rob Melnick (2nd ed.). New Jersey: Perintice Hall.

Gaya MLA

GERLACH, Vernon, S.. et al. "Teaching and media : a systematic approach/ Vernon S. Gerlach, Donald P. Ely, Rob Melnick". 2nd ed. New Jersey: Perintice Hall, 1980. Text.