publisher: Citadel Press publish date: August 28th 1988
format: mass market paperback pages: 204
language: English
ISBN:
0806511036 (9780806511030)
publisher: Sphere Books (London) publish date: 1977
format: paperback pages: 204
language: English
ISBN:
0722163215 (9780722163214)
language: English
ISBN:
0213166739 (9780213166731)