APA-referens (7:e uppl.)

Clark, A. W. (1985). Longman dictionary of geography: Human and physical. Longman.

Chicago-referens (17:e uppl.)

Clark, Audrey W. Longman Dictionary of Geography: Human and Physical. Essex, England: Longman, 1985.

MLA-referens (9:e uppl.)

Clark, Audrey W. Longman Dictionary of Geography: Human and Physical. Longman, 1985.