publisher: Baen Books
publish date: January 1990
format: mass market paperback pages: 307
language: English
ISBN:
0671698567 (9780671698560)
publisher: Baen publish date: March 1st 1991
format: paperback pages: 307
language: English
ISBN:
0671720783 (9780671720780)
language: English
ISBN:
1555940595 (9781555940591)