Strahler, A. H., & Strahler, A. N. (1992). Modern physical geography (4th.). John Wiley & Sons.
シカゴスタイル引用形Strahler, Alan H., , Arthur N. Strahler. Modern Physical Geography. 4th. Canada: John Wiley & Sons, 1992.
MLA引用形式Strahler, Alan H., , Arthur N. Strahler. Modern Physical Geography. 4th. John Wiley & Sons, 1992.
警告: この引用は必ずしも正確ではありません.