Genre
Electronic books
217
Congresses
27
Popular works
5
Textbooks
5
Biography
4
Handbooks, manuals, etc
4
Problems, exercises, etc
4
Juvenile literature
3
Catalogs
2
Bibliography
1
Case studies
1
Directories
1
Documentary
1
Encyclopedias
1
Examinations, questions, etc
1
Laboratory manuals
1
Libros electronicos
1
Miscellanea
1
Outlines, syllabi, etc
1
Video recordings
1
methods
1