ENVIRONMENTAL PROBLEMS IN EASTERN EUROPE
F.W.CARTER D.TURNOCK1993 年出版291 页ISBN：0415137578
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MAJOR PROBLEMS IN CALIFORNIA HISTORY
SUCHENG CHAN SPENCER C.OLIN1997 年出版496 页ISBN：0669275883
Numerical Solution of Elliptic Problems
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BUSINESS MODELING WITH SPREADSHEETS:PROBLEMS
PRINCIPLES AND PRACTICE SECOND EDITION2011 年出版448 页ISBN：9780071078887
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CAMPBELL R.MCCONNELL STANLEY L.BRUE2005 年出版488 页ISBN：
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