Quantitative analysis an introduction
Roy M.Chiulli1999 年出版574 页ISBN:9056996290
INTERMEDIATE MICROECONOMICS SECOND EDITION
ROY J. RUFFIN1992 年出版588 页ISBN:0673463214
POLITICAL REPRESENTATION IN FRANCE
PHILIP E.CONVERSE ROY PIERCE1986 年出版996 页ISBN:0674686608
POLICE MANAGEMENT SECOND EDITION
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Computer Sraphics Second Edition
ZhiGang Xiang and Roy Plastock2002 年出版347 页ISBN:711110417X
DOUGLAS A.BERNSTEIN ALISON CLARKE-STEWART EDWARD J.ROY THOMAS K.SRULL CHRISTOPHER D.WICKENS1994 年出版837 页ISBN:0395649552