APA (7th ed.) Citation

King, F. M. (1981). Understanding the world (2. ed.). Laidlaw.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

King, Frederick M. Understanding the World. 2. ed. Laidlaw, 1981.