Kormondy, E. J. (1965). Ecology. Prentice-Hall, Inc.
Lua i Stíl Chicago (17ú heag.)Kormondy, Edward John. Ecology. Englewood Cliffs, N.J: Prentice-Hall, Inc, 1965.
Lua MLA (9ú heag.)Kormondy, Edward John. Ecology. Prentice-Hall, Inc, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.