Cita APA (7th ed.)

Jacobs, J. A. (1975). The earth's core. Academic Press.

Cita Chicago (17th ed.)

Jacobs, J. A. The Earth's Core. London ; New York: Academic Press, 1975.

Cita MLA (8th ed.)

Jacobs, J. A. The Earth's Core. Academic Press, 1975.