NALDC

A corn-belt farming system which saves harvest labor by hogging down crops

MLA

Drake, J. A. A corn-belt farming system which saves harvest labor by hogging down crops. U.S. Dept. of Agriculture, 1914.

APA

Drake, J. A. (1914). A corn-belt farming system which saves harvest labor by hogging down crops. U.S. Dept. of Agriculture.

Chicago

Drake, J. A. A corn-belt farming system which saves harvest labor by hogging down crops. U.S. Dept. of Agriculture, 1914.