Citazione Stile APA (7a Edizione)

Strahler, A. N. (1963). Exercises on landforms (1. publ., reprinted.). Methuen.

Citazione stile Chigago Style (17a edizione)

Strahler, Arthur Newell. Exercises on Landforms. 1. publ., reprinted. London: Methuen, 1963.

Citatione MLA (9a ed.)

Strahler, Arthur Newell. Exercises on Landforms. 1. publ., reprinted. Methuen, 1963.