Citazione Stile APA (7a Edizione)

WILLIAMS, G. A., BOLEN, M. C., & DOERHOFF Ray B. (1973). Challenges to science physical science. Wbster Division, McGraw-Hill Book Company.

Citazione stile Chigago Style (17a edizione)

WILLIAMS, George A., Max C. BOLEN, e DOERHOFF Ray B. Challenges to Science Physical Science. New York: Wbster Division, McGraw-Hill Book Company, 1973.

Citatione MLA (9a ed.)

WILLIAMS, George A., et al. Challenges to Science Physical Science. Wbster Division, McGraw-Hill Book Company, 1973.