APA (7e ed.) Bronvermelding

THEMES IN & HARVEY, M. E. (1981). Themes in geographic thought. Croom Helm.

Chicago (17e ed.) Bronvermelding

THEMES IN en Milton E. HARVEY. Themes in Geographic Thought. London: Croom Helm, 1981.

MLA (9e ed.) Bronvermelding

THEMES IN en Milton E. HARVEY. Themes in Geographic Thought. Croom Helm, 1981.