Colby, C. C., & Foster, A. (1940). Economic geography: Industries and resources of the commercial world. United States of America: United States of America Armed Forces.
Chicago Style CitationColby, Charles C., and Alice Foster. Economic Geography: Industries and Resources of the Commercial World. United States of America: United States of America Armed Forces, 1940.
MLA CitationColby, Charles C., and Alice Foster. Economic Geography: Industries and Resources of the Commercial World. United States of America: United States of America Armed Forces, 1940.
Warning: These citations may not always be 100% accurate.