Citazione Stile APA (7a Edizione)

Wentworth, D. F. (1976). Ecology in your environment: Examining your environment ([Nachdr.].). Holt, Rinehart and Winston of Canada.

Citazione stile Chigago Style (17a edizione)

Wentworth, Daniel F. Ecology in Your Environment: Examining Your Environment. [Nachdr.]. Toronto Montreal: Holt, Rinehart and Winston of Canada, 1976.

Citatione MLA (9a ed.)

Wentworth, Daniel F. Ecology in Your Environment: Examining Your Environment. [Nachdr.]. Holt, Rinehart and Winston of Canada, 1976.