MICROECONOMICS PRINCIPLES PROBLEMS AND POLICIES
CAMPBELL R.MCCONNELL STANLEY L.BRUE2005 年出版488 页ISBN:
EDUCATIONAL PROBLEMS FOR PSYCHOLOGICAL STUDY
GOODWIN WATSON AND RALPH B.SPENCE1931 年出版352 页ISBN:
CONSTITUTIONAL PROBLEMS IN ORGANIC CHEMISTRY
M.B.WATSON G.W.YOUNGSON1963 年出版136 页ISBN:
HUMANISTIC GEOGRAPHY PROSPECTS AND PROBLEMS
DAVID LEY MARWYN S.SAMUELS1978 年出版337 页ISBN:088425013X
NUMERICAL METHODS IN THERMAL PROBLEMS
R.W.LEWIS AND K.MORGAN1981 年出版1313 页ISBN:0906674123