Libros Digitales
-Internet Archive
Date Added: 23.06.13 Visits: 350
-Million Books Collection
Carnegie Mellon University
Date Added: 05.06.15 Visits: 85
-Open Access Thesis (Proquest)
The authors of these dissertations and theses have opted to publish as open access. Open Access Publishing is a new service offered by ProQuest's UMI Dissertation Publishing, and we expect to have many more open access dissertations and theses over time.
Date Added: 15.01.15 Visits: 137
-Open Syllabus Project (grafica)
Harvard University
Date Added: 04.11.16 Visits: 21
-Open Syllabus Project (principal)
Harvard University
Date Added: 04.11.16 Visits: 19
-Project Guttenberg
Date Added: 23.06.13 Visits: 431
Classic Books
Library of Congress
Date Added: 16.03.14 Visits: 248
Digital CSIC
Amplia seleccion de documentos gratuitos.
Date Added: 14.01.15 Visits: 152
E-libro
Date Added: 23.06.13 Visits: 320
eCommons (Cornell University)
Date Added: 08.08.13 Visits: 451
Getty Virtual Library
Date Added: 06.02.14 Visits: 238
Guía de libros digitales (Ciudad Ceva)
por Luis López Nieves
Date Added: 23.06.13 Visits: 355
PROQUEST - US Dissertations
Via institutional library access.* / Mediante acceso institucional bibliotecario.
Date Added: 17.09.14 Visits: 182
Revista del Instituto de Cultura Puertorriqueña (ICP)
ISSUU
Date Added: 11.01.16 Visits: 98
Scribd
Date Added: 23.06.13 Visits: 294
Smashwords
Publicacion de libros digitales
Date Added: 19.10.14 Visits: 175
Tesis DE
Tesis doctorales, proyectos y otras publicaciones, una base fundamental en la ampliación y desarrollo de los conocimientos científicos.
Date Added: 17.09.14 Visits: 265
The Online Books Page
Date Added: 03.12.13 Visits: 233