Profitable alternative systems of farming on a level central Indiana farm /
Janssen, Melvin R.,author.
Robertson, Lynn(Lynn Shelby),1890-author.
United States.Agricultural Research Service.
Purdue University.Agricultural Experiment Station.
Caption title.
"June, 1956."
"In cooperation with Production Economics Research Branch, Agricultural Research Service, U.S. Department of Agriculture"-- Front cover.
Includes bibliographical references.
Farm management
Farm management.