publisher: Del Rey Books publish date: May 12th 1981
format: mass market paperback pages: 218
language: English
ISBN:
034529694X (9780345296948)
publisher: Ballantine Books publish date: May 12th 1985
format: hardcover pages: 183
language: English
ISBN:
0345323068 (9780345323064)
language: English
ISBN:
0006164323 (9780006164326)