Genre
Libros electrónicos
1 207
Periodicals
563
Electronic journals
416
Electronic books
132
Périodiques
104
Publicaciones periódicas
100
Publicaciones seriadas
25
Revistas electrónicas
18
Libros electronicos
16
Congresses
10
Internet videos
10
Short films
9
Biography
5
Internet resources
5
Libros electr{acute}onicos
5
Classification
4
Handbooks, manuals, etc
4
Conference papers and proceedings
3
Popular works
3
Problems, exercises, etc
3
Congresos
2
Early works to 1800
2
Outlines, syllabi, etc
2
Pâeriodiques
2
Periodical
2
Textbooks
2
Analysis
1
Atlases
1
Biografía
1
Catalogs
1
Catálogos
1
Computer network resources
1
Dictionaries
1
Examination Questions
1
Examinations, questions, etc
1
Exhibition catalogs
1
Exhibitions
1
Libros de texto
1
Libros electrónicos
1
Obras de divulgación
1
Observations
1
Outlines
1
Pre-Linnean works
1
Problemas
1
Problemas, ejercicios, etc
1
Travel writing
1
Zeitschrift
1
czasopisma
1
périodiques
1