South Dakota Agricultural Experiment Station & South Dakota State University. Rural Sociology Department. (1940). Rural sociology pamphlet. Rural Sociology Dept., South Dakota Agricultural Experiment Station.
Čikaški stil citiranja (17. izdanje)South Dakota Agricultural Experiment Station i South Dakota State University. Rural Sociology Department. Rural Sociology Pamphlet. [Brookings, S.D.]: Rural Sociology Dept., South Dakota Agricultural Experiment Station, 1940.
MLA način citiranja (8. izdanje)South Dakota Agricultural Experiment Station i South Dakota State University. Rural Sociology Department. Rural Sociology Pamphlet. Rural Sociology Dept., South Dakota Agricultural Experiment Station, 1940.
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