by Charles Sheffield
publisher: Del Rey Books publish date: March 12th 1988
format: mass market paperback pages: 246
language: English
ISBN:
0345344332 (9780345344335)
publisher: Ace publish date: September 1978
format: paperback pages: 282
language: English
ISBN:
044176343X (9780441763436)
ASIN: B00005WUI4
publisher: Ace publish date: August 1st 1982
format: paperback pages: 288
language: English
ISBN:
0441763421 (9780441763429)
publisher: Baen Books publish date: December 15th 2011
format: ebook pages: 195
language: English
ISBN:
9781618240521
language: English
ISBN:
0450489035 (9780450489037)
language: English
ISBN:
0099259605 (9780099259602)