J.R. Robertson
J.R. Robertson's most popular book is The Terran Menace with 3 saves and an average rating of 4.
Authorship percentage indicates primary author status - excluding introductions, forewards and other contributions.
Series
2 primary books1 released bookAuthored 100% of series
Terran Menace
Terran Menace is a 1-book series first released in 1986 with contributions by J.R. Robertson.
