Books by H. Thomas Frey
Major uses of land in the Unit
Major uses of land in the United States, 1982
Acreage formerly cropped in the Great Plains
Major uses of land in the Unit
Major uses of land in the United States, 1978
Major uses of land in the Unit
Major uses of land in the United States, 1974
Cropland for today and tomorro
Cropland for today and tomorrow
Major uses of land in the Unit
Major uses of land in the United States
Land use change in the souther
Land use change in the southern Mississippi Alluvial Valley, 1950-69
Agricultural application of re
Agricultural application of remote sensing