format: hardcover pages: 69
language: English
ISBN:
039484503X (9780394845036)
publisher: Benjamin Co
publish date: April 1st 1979
format: hardcover pages: 224
ISBN:
0875020623 (9780875020624)
format: kindle
language: English
publisher: Random House (NY)
publish date: September 1st 1980
format: hardcover pages: 69
language: English
ISBN:
0394945034 (9780394945033)
publisher: Redefinition, Incorporated
format: hardcover pages: 192
language: English
ISBN:
0924588039 (9780924588037)
format: paperback
language: English
ISBN:
0517521598 (9780517521595)
publisher: National Geographic Society publish date: June 1st 1982
format: hardcover
language: English
ISBN:
0870443836 (9780870443831)
publisher: Classic Science Fiction publish date: December 16th 2010
format: ebook
ISBN:
0012547255 (2940012547255)