Yazar
Dean Fanning Tuthill
4 cilt bulundu.
Cilt sonuçları
The effects of sediment pollution on water recreation in the upper Potomac estuary
Dean Fanning Tuthill · Dept. of Agricultural Economics, University of Maryland
62 sayfa · 1967
Pollution / Recreation areas / Sedimentation and deposition / Washington (D.C.) / Water
Public assistance programs, costs, and alternatives in the United States and Maryland
Dean Fanning Tuthill · Dept. of Agricultural and Resource Economics, University of Maryland
16 sayfa · 1971
Public welfare
Services to village cultivators in the South Ngoni area of the Chipata District
Dean Fanning Tuthill · Agricultural Experiment Station, University of Maryland
61 sayfa · 1975
Agricultural extension work / Agriculture / Farm income
The structure of shifting agriculture in two Chewa villages
Dean Fanning Tuthill · Agricultural Experiment Station, University of Maryland
55 sayfa · 1968
Chewa (African people) / Shifting cultivation