Cita APA (7th ed.)

Kump, L. R., Crane, R. G., & Kasting, J. F. (1999). The earth system. Prentice-Hall, Inc.

Cita Chicago (17th ed.)

Kump, Lee R., Robert G. Crane, i James F. Kasting. The Earth System. Upper Saddle River, New Jersey: Prentice-Hall, Inc, 1999.

Cita MLA (9th ed.)

Kump, Lee R., et al. The Earth System. Prentice-Hall, Inc, 1999.