Cita APA

Krauskopf, K. B. 1., & Krauskopf, K. B. 1. (1974). The third planet: An invitation to geology. San Francisco: Freeman Cooper.

Citación estilo Chicago

Krauskopf, Konrad Bates 1910-, y Konrad Bates 1910- Krauskopf. The Third Planet: An Invitation to Geology. San Francisco: Freeman Cooper, 1974.

Cita MLA

Krauskopf, Konrad Bates 1910-, y Konrad Bates 1910- Krauskopf. The Third Planet: An Invitation to Geology. San Francisco: Freeman Cooper, 1974.