एपीए उद्धरण

Conningham,William P, & Saigo Barbara Woodworth. (1990). Environmental science: A global concern. Brown Publishers.

शिकागो स्टाइल उद्धरण

Conningham,William P, और Saigo Barbara Woodworth. Environmental Science: A Global Concern. Boston: Brown Publishers, 1990.

एमएलए उद्धरण

Conningham,William P, और Saigo Barbara Woodworth. Environmental Science: A Global Concern. Brown Publishers, 1990.