APA Citation

Greenland, D., & De Bill, H. J. (1977). The earth in profile: A physical geography. San Francisco: Canfield Press.

Chicago Style Citation

Greenland, David, and Harm J. De Bill. The Earth in Profile: A Physical Geography. San Francisco: Canfield Press, 1977.

MLA Citation

Greenland, David, and Harm J. De Bill. The Earth in Profile: A Physical Geography. San Francisco: Canfield Press, 1977.

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