APA-Zitierstil (7. Ausg.)

Halliday, W. R. (1976). Depths of the earth: Caves and cavers of the United States (Rev. and enlarged ed.). Harper & Row.

Chicago-Zitierstil (17. Ausg.)

Halliday, William R. Depths of the Earth: Caves and Cavers of the United States. Rev. and enlarged ed. New York: Harper & Row, 1976.

MLA-Zitierstil (9. Ausg.)

Halliday, William R. Depths of the Earth: Caves and Cavers of the United States. Rev. and enlarged ed. Harper & Row, 1976.