Dasmann, R. F. (1976). Environmental conservation (4th ed.). John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Dasmann, Raymond F. Environmental Conservation. 4th ed. New York: John Wiley & Sons, 1976.
Lua MLA (9ú heag.)Dasmann, Raymond F. Environmental Conservation. 4th ed. John Wiley & Sons, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.