THEMES IN GEOGRAPHIC.., HARVEY, M. E. [., & HOLLY, B. P. [. (1981). Themes in geographic thought/editor Milton E. Harvey;Brian P. Holly. Croom Helm.
Chicago-referens (17:e uppl.)THEMES IN GEOGRAPHIC.., Milton E. [ed] HARVEY, och Brian P. [ed] HOLLY. Themes in Geographic Thought/editor Milton E. Harvey;Brian P. Holly. London: Croom Helm, 1981.
MLA-referens (9:e uppl.)THEMES IN GEOGRAPHIC.., et al. Themes in Geographic Thought/editor Milton E. Harvey;Brian P. Holly. Croom Helm, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.