Xénero
Libros electrónicos
871
Electronic journals
424
Periodicals
415
Electronic books
108
Périodiques
56
Libros electronicos
25
Publicaciones periódicas
23
Newspapers
20
Revistas electrónicas
11
Statistics
10
Congresses
9
Case studies
7
Problems, exercises, etc
7
Dictionaries
6
Diccionarios
5
Libros electr{acute}onicos
4
Periodical
4
Problemas, ejercicios, etc
3
Biography
2
Computer network resources
2
Congresos
2
Examinations, questions, etc
2
Congrès
1
Databases
1
Directories
1
Encyclopedias
1
Estadísticas
1
Estudio de casos
1
Estudios de caso
1
Handbooks, manuals, etc
1
Instructional and educational works
1
Juvenile literature
1
Legislación
1
Libros electrâonicos
1
MAG (Magazine/Journal)
1
Periodocals
1
Problemas y ejercicios
1
Problems and exercises
1
Statistiques
1
Study and teaching
1
Trials, litigation, etc
1
periodicals
1