Klimm, L. E. (1956). Introductory economic geography.
Chicagoスタイル(17版)引用形式Klimm, Lester Earl. Introductory Economic Geography. New York : Harcourt, Brace, 1956.
MLA(9版)引用形式Klimm, Lester Earl. Introductory Economic Geography. 1956.
警告: この引用は必ずしも正確ではありません.