Land utilization and the farm problem
Gray, L.C., Baker, O.E.
Land utilization and the farm problem - Washington 1930 - 1-54 p. - Land, Utilization, Farm United State Department of Agriculture. Miscellaneous Publication No. 97 .
Land utilization and the farm problem - Washington 1930 - 1-54 p. - Land, Utilization, Farm United State Department of Agriculture. Miscellaneous Publication No. 97 .