Valentine, G. (2015). Approaches to Human Geography: Philosophies, theories, people and practices (2nd ed.). Sage.
Chicago-čujuhus (17. p.)Valentine, Gill. Approaches to Human Geography: Philosophies, Theories, People and Practices. 2nd ed. New Delhi: Sage, 2015.
MLA-čujuhus (9. p.)Valentine, Gill. Approaches to Human Geography: Philosophies, Theories, People and Practices. 2nd ed. Sage, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.