Cita APA (7a ed.)

KRAUSKOPF, K. B. (1967). The Physical Universe. McGraw-Hill.

Cita Chicago Style (17a ed.)

KRAUSKOPF, Konrad B. The Physical Universe. New York: McGraw-Hill, 1967.

Cita MLA (9a ed.)

KRAUSKOPF, Konrad B. The Physical Universe. McGraw-Hill, 1967.