This is the Set of Building Thinking Skills for Level 2 Books (#1392). Both the Student Edition and the Instruction & Answer Guide” by SANDRA PARKS & HOWARD BLACK. Student ISBN: 089455252X, (MP 52.03) and Answer Guide ISBN: 0894553216, (MP 52.10). Copyright 1999 by Critical Thinking Books & Software, Pacific Grove, California. Printed in the USA. The book are in excellent condition, please see pix.

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