Citazione Stile APA (7a Edizione)

Graham, H. (1977). Reading topographic maps ([Nachdr.].). Holt, Rinehart and Winston of Canada.

Citazione stile Chigago Style (17a edizione)

Graham, Harry. Reading Topographic Maps. [Nachdr.]. Toronto Montreal: Holt, Rinehart and Winston of Canada, 1977.

Citatione MLA (9a ed.)

Graham, Harry. Reading Topographic Maps. [Nachdr.]. Holt, Rinehart and Winston of Canada, 1977.