Yazar
Otis Durant Duncan
5 cilt bulundu.
Cilt sonuçları
Social research on health
Otis Durant Duncan · Social Science Research Council
212 sayfa · 1946
Public health / Research / Social sciences
The theory and consequences of mobility of farm population
Otis Durant Duncan · Oklahoma Agricultural and Mechanical College, Agricultural Experiment Station
22 sayfa · 1940
Kategori yok
Population trends in Oklahoma
Otis Durant Duncan · Oklahoma Agricultural and Mechanical College Agricultural Experiment Station
34 sayfa · 1935
Population
A study of certain economic factors in relation to social life among Oklahoma cotton farmers
Otis Durant Duncan · Oklahoma Agricultural and Mechanical College, Agricultural Experiment Station
36 sayfa · 1933
Cotton farmers / Economic conditions / Social conditions
Social factors of farm ownership in Oklahoma
Robert T. McMillan, Otis Durant Duncan · Oklahoma Agricultural Experiment Station
32 sayfa · 1945
Farm ownership / Social aspects