Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Thomas Hoover
Carl R. Maag and Steve Rohrer
United States. Department of the Army
Murray Leinster
424 downloads
George H. Smith
Edward Teller and Albert L. Latter
James Blish
William Oberfield
Julian F. Grow
George O. Smith
Stephen Marlowe
255 downloads
191 downloads
160 downloads
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.