Gaya APA

George A. Williams, Richard A. Barnes, Ray B. Doerfhoff, Max C. Bolen. (1972). Challenges to Science Physical Science (2). New York: McGrawHill Book Company.

Gaya Chicago

George A. Williams, Richard A. Barnes, Ray B. Doerfhoff, Max C. Bolen. Challenges to Science Physical Science. 2 New York: McGrawHill Book Company, 1972. Text.

Gaya MLA

George A. Williams, Richard A. Barnes, Ray B. Doerfhoff, Max C. Bolen. Challenges to Science Physical Science. 2 New York: McGrawHill Book Company, 1972. Text.

Gaya Turabian

George A. Williams, Richard A. Barnes, Ray B. Doerfhoff, Max C. Bolen. Challenges to Science Physical Science. 2 New York: McGrawHill Book Company, 1972. Print.