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MLA

Purves, C.M, F.J Hosking, and C.L Harlan. "Feed Crops Since 1929 Worth Relatively More Than the Cash Grains." , 171-179.. Print

APA

Purves, C., Hosking, F., & Harlan, C. (0000). Feed Crops Since 1929 Worth Relatively More Than the Cash Grains.

Chicago

Purves, C.M., F.J Hosking, and C.L Harlan. "Feed Crops Since 1929 Worth Relatively More Than the Cash Grains" (1933): 171-179..