एपीए उद्धरण

Enger, E. D., & Smith, B. F. (1998). Environmental Science: A Study of Interrelationships. Boston: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Enger, Eldon D., और Bradley F. Smith. Environmental Science: A Study of Interrelationships. Boston: McGraw-Hill, 1998.

एमएलए उद्धरण

Enger, Eldon D., और Bradley F. Smith. Environmental Science: A Study of Interrelationships. Boston: McGraw-Hill, 1998.