Babbie, Earl
The Practice of social research / Earl Babbie
Wadsworth, 1998
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Babbie, Earl
The Practice of social research / Earl Babbie
Wadsworth, 1991
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The social uses of social sciences : the paper of Robert Redfield
edited by Margaret Park Redfield
The University of Chicago Press , 1963
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A guide to the social sciences
edited by Norman MacKenzie
The New American Library, 1968
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Bierstedt, Robert
Modern social science
McGraw-Hill, 1964
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