Genre
Amateurs' manuals
3
Atlas
4
Atlases
15
Bibliografía juvenil
1
Biografía
11
Biografías
3
Biographies
4
Biography
41
Caricaturas y viñetas
1
Caricatures and cartoons
1
Case studies
4
Catalogs
5
Catálogos
3
Classification
3
Collection and preservation
3
Computer network resources
7
Conference papers and proceedings
5
Conferencias
1
Congresos
17
Congresos y asambleas
3
Congresses
55
Congressos
1
Correspondence
1
Data processing
2
Diaries
1
Diccionarios
5
Dictionaries
9
Discursos, ensayos, conferencias
2
Dissertations
6
Divulgación
1
Early works to 1800
13
Electronic books
905
Estudios de caso
1
Estudios de casos
1
Examination Questions
11
Examinations
2
Examinations, questions, etc
22
Exámenes
1
Exámenes, preguntas, etc
2
Exámenes, pregutnas, etc
1
Exámenes, tests, etc
3
Exhibition catalogs
1
Exhibitions
2
Experimentos de campo
1
Experiments
1
Exploration
1
Exposiciones
1
Facsimiles
1
Fiction
1
Formulae
1
more ...