APA (7th ed.) Citation

King, F. M. (1981). Understanding regions of the earth (2. ed.). Laidlaw.

Chicago Style (17th ed.) Citation

King, Frederick M. Understanding Regions of the Earth. 2. ed. River Forest, Ill. [u.a.]: Laidlaw, 1981.

MLA (9th ed.) Citation

King, Frederick M. Understanding Regions of the Earth. 2. ed. Laidlaw, 1981.