Whitbeck, R. H. 1. -. 1., & Williams, F. E. (1940). Economic geography of South America (3. edition.). New York, New York: McGraw-Hill.
Chicago Style CitationWhitbeck, Ray Hughes 1871 - 1939, and Frank E. Williams. Economic Geography of South America. 3. edition. New York, New York: McGraw-Hill, 1940.
MLA CitationWhitbeck, Ray Hughes 1871 - 1939, and Frank E. Williams. Economic Geography of South America. 3. edition. New York, New York: McGraw-Hill, 1940.
Warning: These citations may not always be 100% accurate.