Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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