APA (7th ed.) Citation

Williamson, M. N. (1939). An economic study of the grain sorghum industry. [publisher not identified].

Chicago Style (17th ed.) Citation

Williamson, Marion Newton. An Economic Study of the Grain Sorghum Industry. (College Station, Texas): [publisher not identified], 1939.

MLA (9th ed.) Citation

Williamson, Marion Newton. An Economic Study of the Grain Sorghum Industry. [publisher not identified], 1939.