Gaya APA

KRAUSKOPF, K, B., BEISER, A. (1967). THE PHYSICAL UNIVERSE (2nd ed.). New York: McGRAW-HILL.

Gaya MLA

KRAUSKOPF, Konrad, B., BEISER, ARTHUR. "THE PHYSICAL UNIVERSE". 2nd ed. New York: McGRAW-HILL, 1967. Textbook.