keyword: Science – 97 free books.
All these books are free to read: either they're distributed with a free license, or they're in the public domain.
These books are included in the Directory of Open Access Books. This means that they have been peer-reviewed and are of interest to scholars.
Michael Dawson et al.
Maria Eugênia Bruck de Moraes and Reinaldo Lorandi
Karin Zachmann and Nina Möllers, editors