Gaya APA

Fong, P, P. (1976). Physical science, energy, and our environment (1976). : New York : Macmillan Pub.Co.Inc.,.

Gaya MLA

Fong, Peter, P. "Physical science, energy, and our environment". 1976 : New York : Macmillan Pub.Co.Inc.,, 1976. Text.