Available Editions

Collection

Paperback

Book cover for Callahan's Secret
2002 Year
Tor Publisher
ISBN-13: 978-0-8125-7229-2
ISBN-10: 0-8125-7229-7
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Audio

Book cover for The Callahan Chronicals
2010 Year
Playaway Digital Audio Publisher
ISBN-13: 978-1-4417-1794-8
ISBN-10: 1-4417-1794-3
Not Available for Purchase

Anthology

Hardcover

Book cover for Tomorrow Sucks
2011 Year
Fall River Press Publisher
ISBN-13: 978-1-4351-2680-0
ISBN-10: 1-4351-2680-7
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Paperback

Book cover for Tomorrow Sucks
1994 Year
Baen Books Publisher
ISBN-13: 978-0-671-87626-5
ISBN-10: 0-671-87626-0
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Magazine

Traditional Print

Book cover for Analog Science Fiction/Science Fact, October 12, 1981
1981 Year
Davis Publications Publisher
Not Available for Purchase