एपीए उद्धरण

Botkin, D. B., & Keller, E. A. (2003). Environmental science: Earth as a living planet (4th ed.). New York: Wiley.

शिकागो स्टाइल उद्धरण

Botkin, Daniel B., और Edward A. Keller. Environmental Science: Earth As a Living Planet. 4th ed. New York: Wiley, 2003.

एमएलए उद्धरण

Botkin, Daniel B., और Edward A. Keller. Environmental Science: Earth As a Living Planet. 4th ed. New York: Wiley, 2003.