by Gordon R. Dickson
publisher: Baen Books
format: mass market paperback
language: English
ISBN:
5553861845 (9785553861841)
publisher: Baen Books publish date: January 2nd 1989
format: mass market paperback pages: 320
language: English
ISBN:
0671698001 (9780671698003)
publisher: DAW publish date: November 15th 1977
format: paperback pages: 240
language: English
ISBN:
0879973374 (9780879973377)
publisher: Pyramid publish date: March 1971
language: English
ISBN:
0515033286 (9780515033281)
publisher: DAW publish date: May 5th 1981
format: paperback
language: English
ISBN:
0879976217 (9780879976217)
publisher: Macdonald & Company publish date: 1970
language: English
ISBN:
0356033317 (9780356033310)