Cita APA (7a ed.)

Clark, D. (1982). Urban geography: An introductory guide. Helm.

Cita Chicago Style (17a ed.)

Clark, David. Urban Geography: An Introductory Guide. London [etc.]: Helm, 1982.

Cita MLA (9a ed.)

Clark, David. Urban Geography: An Introductory Guide. Helm, 1982.