1980 - Trap for Perseus (Hardcover) → Hardcover ISBN-13: 9780878881604 ISBN-10: 0878881603 Genres: Children's Books, Science Fiction & Fantasy, Teen & Young Adult ? The Earth Is Near (Hardcover) → Paperback, Hardcover ISBN-13: 9780878880669 ISBN-10: 0878880666 Genre: Science Fiction & Fantasy ? |