Sy Liebergot
Sy Liebergot has written at least 1 book. Their most popular book is Apollo EECOM: Journey of a Lifetime with 1 save with an average rating of -⭐.
Authorship percentage indicates primary author status - excluding introductions, forewards and other contributions.
Series
9 primary booksAuthored 11% of series
Apogee Books Space Series
Apogee Books Space Series is a 9-book series with 9 released primary works first released in 1977 with contributions by Gerard K. O'Neill, Sy Liebergot, and David M. Harland.
