एपीए उद्धरण

Cunningham, W. P., Cunningham, M. A., & Saigo, B. W. (2003). Environmental science: A global concern (7th ed.). McGraw-Hill.

शिकागो स्टाइल उद्धरण

Cunningham, William P., Mary Ann Cunningham, और Barbara Woodworth Saigo. Environmental Science: A Global Concern. 7th ed. Dubuque, Iowa: McGraw-Hill, 2003.

एमएलए उद्धरण

Cunningham, William P., et al. Environmental Science: A Global Concern. 7th ed. McGraw-Hill, 2003.