APA (7th ed.) Citation

Skinner, B. J., Porter, S. C., & Botkin, D. B. (1999). The blue planet: An introduction to earth system science (2nd ed.). Wiley.

Chicago Style (17th ed.) Citation

Skinner, Brian J., Stephen C. Porter, and Daniel B. Botkin. The Blue Planet: An Introduction to Earth System Science. 2nd ed. Singapore: Wiley, 1999.

MLA (9th ed.) Citation

Skinner, Brian J., et al. The Blue Planet: An Introduction to Earth System Science. 2nd ed. Wiley, 1999.