APA-referens (7:e uppl.)

Unwin, T. (1992). The place of geography. Longman Scientific & Technical.

Chicago-referens (17:e uppl.)

Unwin, Tim. The Place of Geography. Harlow, Essex, Eng: Longman Scientific & Technical, 1992.

MLA-referens (9:e uppl.)

Unwin, Tim. The Place of Geography. Longman Scientific & Technical, 1992.