APA引文

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.

MLA引文

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

警告：這些引文格式不一定是100％准確.