APA (7th ed.) Citation

Gabler, R. E. (1977). Essentials of physical geography. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Gabler, Robert E. Essentials of Physical Geography. New York: Holt, Rinehart and Winston, 1977.

MLA (8th ed.) Citation

Gabler, Robert E. Essentials of Physical Geography. Holt, Rinehart and Winston, 1977.

Warning: These citations may not always be 100% accurate.