Labovitz,Sanford. (1976). Introduction to social research (2.). Mc Graw Hill Book Company.
Chicago Edition CitationLabovitz,Sanford. Introduction to Social Research. 2. New York: Mc Graw Hill Book Company, 1976.
Cita MLALabovitz,Sanford. Introduction to Social Research. 2. Mc Graw Hill Book Company, 1976.
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