Strahler, A. H., & Strahler, A. N. (2003). Introducing physical geography (Third ed.). New York: Wiley.
Trích dẫn kiểu ChicagoStrahler, Alan H., và Arthur Newell Strahler. Introducing Physical Geography. Third ed. New York: Wiley, 2003.
ציטוט MLAStrahler, Alan H., và Arthur Newell Strahler. Introducing Physical Geography. Third ed. New York: Wiley, 2003.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.