Kaplan, Abraham
The conduct of inquiry: methodology for behavioral science
Chandler, 1964
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Kaplan, Abraham
The Conduct of inquiry
Harper & Row, 1963
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Rourke, John T.
International politics: on the world stage
McGraw-Hill, 2010
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Rourke, John T.
International politics on the world stage
Mc Graw Hill, 2009
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Rourke, John T.
International politics on the world stage
McGraw-Hill, 2007
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