Farm knowledge; a complete manual of successful farming written by recognized authorities in all parts of the country; based on sound principles and the actual experience of real farmers - "The farmer's own cyclopedia",

The volumes are issued in two parts each, with individual t.-p.

Highest return farming systems for Tama and Muscatine soils: an application of linear programming to 240- and 480- acre farms operated by two men/

Cover title.

Highest return farming systems for Drummer-Flanagan soils : an application of linear programming to farm planning /

Cover title.