APA-ийн эшлэл(7 дахь хэвлэлт)

Joseph J. Hobbs. (2017). Fundamental of World Regional Geography (4th ed.). Cengage.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Joseph J. Hobbs. Fundamental of World Regional Geography. 4th ed. Singapore: Cengage, 2017.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Joseph J. Hobbs. Fundamental of World Regional Geography. 4th ed. Cengage, 2017.