Gaya APA

Physical Science. (Challenges to science). (1973). New York: McGraw-Hill.

Gaya Chicago

Physical Science. (Challenges to science). . New York: McGraw-Hill, 1973. .

Gaya MLA

Physical Science. (Challenges to science). . New York: McGraw-Hill, 1973. .

Gaya Turabian

Physical Science. (Challenges to science). New York: McGraw-Hill, 1973. .