एपीए उद्धरण

Botkin, D. B. (2003). Environmental science: Earth as a living planet. New York: Wiley.

शिकागो स्टाइल उद्धरण

Botkin, Daniel B. Environmental Science: Earth As a Living Planet. New York: Wiley, 2003.

एमएलए उद्धरण

Botkin, Daniel B. Environmental Science: Earth As a Living Planet. New York: Wiley, 2003.