Gabler, R. E. (2007). Essentials of physical geography. Australia: Thomson Brooks/cole.
Chicago Style CitationGabler, Robert E. Essentials of Physical Geography. Australia: Thomson Brooks/cole, 2007.
Cita MLAGabler, Robert E. Essentials of Physical Geography. Australia: Thomson Brooks/cole, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.