Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Walter Libby
Marie Curie
Carl R. Maag and Steve Rohrer
United States. Arms Control and Disarmament Agency
Ernest Rutherford
Lucien Poincaré
Henry Faul
Walter E. Kisieleski and Renato Baserga
Edward Teller and Albert L. Latter
F. P. Venable
Neal O. Hines
Pierre Curie
George O. Smith
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.