APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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