APA (7th ed.) Zitazioa

Strahler, A. N., & Strahler, A. H. (1997). Student Exercise Manual to Accompany Physical Geography: Science and Systems of the Human Environment. John Wiley & Sons, Inc.

Chicago Style (17th ed.) Zitazioa

Strahler, Arthur N., eta Alan H. Strahler. Student Exercise Manual to Accompany Physical Geography: Science and Systems of the Human Environment. New York: John Wiley & Sons, Inc, 1997.

MLA (9th ed.) Zitazioa

Strahler, Arthur N., eta Alan H. Strahler. Student Exercise Manual to Accompany Physical Geography: Science and Systems of the Human Environment. John Wiley & Sons, Inc, 1997.