Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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