Comparative intensity of land use in Virginia for feed crops cost per pound of total digestible nutrients by counties and production areas, 1959
Comparative intensity of land use in Virginia for feed crops cost per pound of total digestible nutrients by counties and production areas, 1959 - Blacksburg : Virginia Polytecchnir Institute, Agricultural Experiment Station, 1962. - 14 p. ; 16 cm. - Circular ; 908 .