Seller: Wonder Book, Frederick, MD, U.S.A.
Condition: Good. Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains. Seller Inventory # N18A-03186
Seller: HPB-Emerald, Dallas, TX, U.S.A.
paperback. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority! Seller Inventory # S_430010125
Seller: Adagio Books, Longmont, CO, U.S.A.
Soft Cover. In very good, clean, unmarked condition with slight shelf wear. "Learn about explorers who followed rivers centuries ago. Then find out what happens on the world's rivers today." Reading level 3-4th grade. Seller Inventory # 9796-10