  1990 - Mexico's Sierra Madre [The World's Wild Places] (Paperback) ISBN-13: 9780705401692 ISBN-10: 0705401693 ?  1987 - Twenty Million Yankees the Northern Home Front [Civil War] (Hardcover) → Hardcover ISBN-13: 9780809447534 ISBN-10: 0809447533 Genre: History ?  1986 - Underground Worlds [Planet Earth] (Paperback) → Hardcover ISBN-13: 9780705407458 ISBN-10: 0705407454 ?  1985 - Underground Worlds [Planet Earth] (Hardcover) → Paperback ISBN-13: 9780809443208 ISBN-10: 0809443201 Genre: Science & Math ?  1983 - The Explorers [Epic of Flight] (Hardcover) ISBN-13: 9780809433667 ISBN-10: 0809433664 Genres: History, Nonfiction 2  1982 - Flying the Mail [Epic of Flight] (Hardcover) ISBN-13: 9780809433292 ISBN-10: 080943329X Genres: History, Nonfiction ?  1981 - The Aeronauts [Epic of Flight, Vol 4] (Hardcover) ISBN-13: 9780809432684 ISBN-10: 0809432684 Genres: History, Engineering & Transportation 1   1980 - The Aeronauts [The Epic of flight ; 4] (Other) ISBN-13: 9780809432677 ISBN-10: 0809432676 Genre: Engineering & Transportation ?  1979 - Kangaroos and Other Creatures From Down Under [Wild, Wild World of Animals] (Paperback) ISBN-13: 9780913948170 ISBN-10: 0913948179 Genres: Literature & Fiction, Science & Math 1  1975 - Sagebrush Country [American Wilderness] (Hardcover) ISBN-13: 9780809412174 ISBN-10: 0809412179 Genre: Outdoors & Nature ? |
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