एपीए उद्धरण

Kormondy, E. J. (1996). Concepts of ecology (4th ed.). PHI Learning.

शिकागो स्टाइल उद्धरण

Kormondy, Edward J. Concepts of Ecology. 4th ed. PHI Learning, 1996.

एमएलए उद्धरण

Kormondy, Edward J. Concepts of Ecology. 4th ed. PHI Learning, 1996.