Cita APA (7th ed.)

Beiser, A., & Krauskopf, K. B. (1975). Introduction to earth science. McGraw Hill.

Cita Chicago (17th ed.)

Beiser, Arthur, i Konrad B. Krauskopf. Introduction to Earth Science. New York: McGraw Hill, 1975.

Cita MLA (9th ed.)

Beiser, Arthur, i Konrad B. Krauskopf. Introduction to Earth Science. McGraw Hill, 1975.