Cita APA

Gabler, R. E. (2007). Essentials of physical geography. Australia: Thomson Brooks/cole.

Chicago Style Citation

Gabler, Robert E. Essentials of Physical Geography. Australia: Thomson Brooks/cole, 2007.

Cita MLA

Gabler, Robert E. Essentials of Physical Geography. Australia: Thomson Brooks/cole, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.