Fellman, J. D., Getis, A., & Getis, J. (2001). Human geography: Landscapes of human activities (Updated 6th ed.). Mcgraw-Hill.
Lua i Stíl Chicago (17ú heag.)Fellman, Jerome Donald, Arthur Getis, agus Judith Getis. Human Geography: Landscapes of Human Activities. Updated 6th ed. Boston: Mcgraw-Hill, 2001.
Lua MLA (9ú heag.)Fellman, Jerome Donald, et al. Human Geography: Landscapes of Human Activities. Updated 6th ed. Mcgraw-Hill, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.