TRIGONOMETRY A MODERN APPROACH SECOND EDITION
ADDISON-WESLEY PUBLISHING COMPANY1985 年出版0 页ISBN：
WRITTEN COMMUNICATION IN BUSINESS:SECOND EDITION
ROBERT L.SHURTER PH.D.1957 年出版582 页ISBN：
CALCULUS FOR COLLEGE STUDENTS SECOND EDITION
ADDISON-WESLEY PUBLISHING COMPANY1973 年出版0 页ISBN：
PRINCIPLES OF ELECTRICAL ENGINEERING THIRD EDITION
WILLIAM H.TIMBIE VANNEVAR BUSH1940 年出版542 页ISBN：
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MCGRAW-HILL BOOK COMPANY1942 年出版642 页ISBN：
