Gaya APA

Janke, K, T, H, D. (1984). Instructor's Manual to Accompany Elementary Science Methods . New York: Mc Graw-Hill book company.

Gaya MLA

Janke, Kenneth, T, Henson, Delmar. "Instructor's Manual to Accompany Elementary Science Methods". New York: Mc Graw-Hill book company, 1984. .