APA ציטוט

Gabler, R. E. (2004). Essentials of physical geography. Belmont, CA: Thomson Books/Cole.

Trích dẫn kiểu Chicago

Gabler, Robert E. Essentials of Physical Geography. Belmont, CA: Thomson Books/Cole, 2004.

ציטוט MLA

Gabler, Robert E. Essentials of Physical Geography. Belmont, CA: Thomson Books/Cole, 2004.