APA ציטוט

Hobbs, J. J., & Joseph J. Hobbs. (2007). Fundamentals of world regional Geography. Belmont, CA: Thomson Brooks/Cole.

Trích dẫn kiểu Chicago

Hobbs, Joseph J., và Joseph J. Hobbs. Fundamentals of World Regional Geography. Belmont, CA: Thomson Brooks/Cole, 2007.

ציטוט MLA

Hobbs, Joseph J., và Joseph J. Hobbs. Fundamentals of World Regional Geography. Belmont, CA: Thomson Brooks/Cole, 2007.