2001 - Problem Solving (Hardcover) → Paperback ISBN-13: 9780415202992 ISBN-10: 041520299X Genre: Science & Math ? 2001 - Problem Solving (Paperback) → Hardcover ISBN-13: 9780415203005 ISBN-10: 0415203007 Genre: Science & Math ? 1999 - Types of Thinking [Psychology Focus] (Other) → Paperback ISBN-13: 9780415191050 ISBN-10: 041519105X Genres: Health, Fitness & Dieting, Science & Math, Engineering & Transportation ? 1999 - Types of Thinking [Psychology Focus] (Paperback) ISBN-13: 9780415191067 ISBN-10: 0415191068 Genres: Health, Fitness & Dieting, Science & Math, Engineering & Transportation ? |