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出版McGraw-Hill Higher Education, 1992-12
主題Mathematics / Algebra / GeneralMathematics / Algebra / Elementary
ISBN00706302089780070630208
URLhttp://books.google.com.hk/books?id=5joIwxwsORgC&hl=&source=gbs_api
註釋While riding through the forests of Angleland, cousins Per and Radius realize they are lost and are desperate for a map to guide them home. Soon they come across a mysterious house in the hills. Inside they find a map to a treasure belonging to Xaxon Yell