एपीए उद्धरण

Enger, E. D. (2000). Environmental science: A study of interrelationships. Boston, Mass: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston, Mass: McGraw-Hill, 2000.

एमएलए उद्धरण

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston, Mass: McGraw-Hill, 2000.