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|   | ENCYCLOPEDIA BROWN TRACKS THEM DOWN by SOBOL, DONALD J. (Paperback - 1971) ISBN: 9780553157215 Subject: CHILDREN Publisher: DELL YEARLING US | 
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|   | TWO-MINUTE MYSTERIES by SOBOL, DONALD J. (Paperback - 1967) ISBN: 9780590447874 Subject: CHILDREN Publisher: SCHOLASTIC US | 
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