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.
Citazione stile Chigago Style (17a edizione)Strahler, Arthur N., e Alan H. Strahler. Student Exercise Manual to Accompany Physical Geography: Science and Systems of the Human Environment. New York: John Wiley & Sons, Inc, 1997.
Citatione MLA (9a ed.)Strahler, Arthur N., e Alan H. Strahler. Student Exercise Manual to Accompany Physical Geography: Science and Systems of the Human Environment. John Wiley & Sons, Inc, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.