Gaya APA

Hone, E, B. et al (1971). A sourcebook for elementary science : teaching elementry science (2nd ed.). New York: Harcourt Brace Jovanovich Inc.

Gaya MLA

Hone, Elizabeth, B.. et al. "A sourcebook for elementary science : teaching elementry science". 2nd ed. New York: Harcourt Brace Jovanovich Inc, 1971. Text.