Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.