Citazione Stile APA (7a Edizione)

Strahler, A., & Strahler, A. (2005). Physical geography: Science and systems of the human environment (3rd ed.). John wiley.

Citazione stile Chigago Style (17a edizione)

Strahler, Alan, e Arthur Strahler. Physical Geography: Science and Systems of the Human Environment. 3rd ed. Hoboken: John wiley, 2005.

Citatione MLA (9a ed.)

Strahler, Alan, e Arthur Strahler. Physical Geography: Science and Systems of the Human Environment. 3rd ed. John wiley, 2005.