Steven P. Petrick

titleISBN-13
(ISBN-10)
year of publica-
tion
other author(s)
GURPS Prime Directive Core Rulebook978-1-58564-O22-5
(1-58564-O22-O)
2002Gary Plana · Leanna M. Cole

P.P. · P. Petrick · S. P.

Steven P., Ph.D. Guthrie