1993 - Outpost on Apollos Moon (Hardcover) ISBN-13: 9780231076661 ISBN-10: 0231076665 Genre: Science & Math ? 1992 - Far Encounter the Neptune System (Hardcover) ISBN-13: 9780231074124 ISBN-10: 0231074123 Genre: Science & Math ? 1988 - Uranus and Neptune the Distant Giants (Hardcover) ISBN-13: 9780231064927 ISBN-10: 0231064926 Genre: Science & Math ? 1982 - Celestial Basic Astronomy on Your Computer (Paperback) ISBN-13: 9780895880871 ISBN-10: 0895880873 Genres: Computers & Technology, Science & Math 1 1982 - By Jupiter (Hardcover) ISBN-13: 9780231051767 ISBN-10: 023105176X Genres: Science & Math, Substores ? 1978 - To the Red Planet (Hardcover) ISBN-13: 9780231043922 ISBN-10: 0231043929 Genre: Science & Math ? 1977 - Flight to Mercury (Hardcover) ISBN-13: 9780231039963 ISBN-10: 0231039964 Genres: Nonfiction, Science & Math, Engineering & Transportation ? Return to the Red Planet (Hardcover) ISBN-13: 9780231069427 ISBN-10: 0231069421 Genres: Travel, Science & Math ? More Uses for the Timex Sinclair 1000 Astronomy (Paperback) ISBN-13: 9780895881120 ISBN-10: 0895881128 Genre: Science & Math ? |