Elster, Jon
Explaining social behavior: more nuts and bolts for the social sciences
Cambridge University Press, 2015
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United States Department of Labor
Cold formed machine bolts and hexagon nuts United States Department of Labor
S.l. The Foreign Operations Administration 1953,
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Stebbins, Robert A.
Exploratory research in the social sciences
Sage, 2001
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Rose, Arnold M.
Theory and method in the social sciences
University of Minnesota Press, 1954
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Causal models in the social sciences
edited by H.M. Blalock
Aldine Publishing, 1974
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