Yazar
John Conrad Callahan
6 cilt bulundu.
Cilt sonuçları
Economic-environmental interrelationships
John Conrad Callahan · Wood Research Laboratory, Dept. of Forestry and Natural Resources, Agricultural Experiment Station, Purdue University
73 sayfa · 1978
Environmental aspects of Regional planning / Regional planning
The timber marketing process in Indiana
John Conrad Callahan · Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Sayfa sayısı yok · 1979
Marketing / Timber
Effects of urban encroachment on rural land use
John Conrad Callahan · Dept. of Forestry and Natural Resources, Purdue University
53 sayfa · 1977
Rural Land use / Cities and towns / Growth