Género
Libros electrónicos
210
Electronic books
123
Periodicals
120
Electronic journals
89
Périodiques
29
Publicaciones periódicas
12
Case studies
6
Congresses
5
Libros electronicos
4
Newspapers
4
Estudios de caso
3
Directories
2
Biographies
1
Biography
1
Classification
1
Collections
1
Conference papers and proceedings
1
Congrès
1
Dictionaries
1
Electronic reference sources
1
Estudios de casos
1
Fiction
1
Handbooks, manuals, etc
1
Interviews
1
Libros de texto, manuales, etc
1
Novela
1
Popular works
1
Review Literature
1
Statistics
1