经济书： principle of microeconomics Sixth Canadian Edition Mankiw Kneebone Mckenzie 9成新
经济书：the economics of sports Fourth Edition 9成新
数学书： Single Variable CALCULUS Early Transcendentals 这个有2本一模一样的 9成新
数学书：Selected Chapters and Solutions from Elementary Liner Algebra, Eleventh Edition 9成新
社会学： Sociology in our times Fifth canadian edition 9成新
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