Klimm, L. E. (1956). Introductory economic geography.
芝加哥风格引文Klimm, Lester Earl. Introductory Economic Geography. New York : Harcourt, Brace, 1956.
MLA引文Klimm, Lester Earl. Introductory Economic Geography. 1956.
警告：这些引文格式不一定是100％准确.
APA引文