(2016). Key Methods in Geography (3rd ed.). Sage.
Chicago-čujuhus (17. p.)Key Methods in Geography. 3rd ed. New Delhi: Sage, 2016.
MLA-čujuhus (9. p.)Key Methods in Geography. 3rd ed. Sage, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.