Cita APA (7th ed.)

Kormondy, E. J. (1996). Concepts of ecology (4th ed.). Prentice Hall.

Cita Chicago (17th ed.)

Kormondy, Edward John. Concepts of Ecology. 4th ed. Portland, Or.: Prentice Hall, 1996.

Cita MLA (8th ed.)

Kormondy, Edward John. Concepts of Ecology. 4th ed. Prentice Hall, 1996.