The essentials of a successful self-feeder for swine, for concentrated feeds /
by John M. Evvard, J.B. Davidson, and W.A. Foster.

APA Citation

Evvard, J. M. (John Marcus)., Foster, W. A. (William Arthur)., Davidson, J. Brownlee. (1922). The essentials of a successful self-feeder for swine, for concentrated feeds. Ames, Iowa: Agricultural Experiment Station, Iowa State College of Agriculture and the Mechanic Arts.

MLA Citation

Evvard, John M. (John Marcus), 1884-, W. A. (William Arthur) Foster, and Jay Brownlee Davidson. The Essentials of a Successful Self-feeder for Swine, for Concentrated Feeds. Ames, Iowa: Agricultural Experiment Station, Iowa State College of Agriculture and the Mechanic Arts, 1922.