McNeill, Patrick
Research methods
Routledge, 1990
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White, Theresa L.
Research methods
Wadsworth and Cengage Learning, 2013
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Larson, Richard C., 1943-
Urban operations research
Prentice-Hall, 1981
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Andranovich, Gregory D.
Doing urban research
Sage, 1993
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Leavitt, Fred
Research methods for behavioral scientists
C. Brown Publishers , 1991
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