Yazar
gerald f vaughn
7 cilt bulundu.
Gerald F. Vaughn · University of Delaware, College of Agricultural Sciences, Agricultural Experiment Station, Cooperative Extension
52 sayfa · 1994
Cities and towns / Growth / Land use, Rural / Land use, Urban / Planning
Gerald F. Vaughn · Environmental Institute, University of Massachusetts
30 sayfa · 2002
Wildlife conservation / Wildlife conservationists / Biography / History
Gerald F. Vaughn · Agricultural Experiment Station, Cooperative Extension System, University of Delaware
45 sayfa · 1988
Agriculture / Soil conservation / Research
Gerald F. Vaughn, Edward C. Moore · Division of Urban Affairs and Agricultural Experiment Station, University of Delaware
15 sayfa · 1963
Urban Land use / Regional planning / Economic conditions
William M. Crosswhite, Gerald F. Vaughn · University of Delaware Agricultural Experiment Station
28 sayfa · 1962
Land use