Genere
Libros electrónicos
134
Electronic books
89
Periodicals
18
Electronic journals
16
Libros electronicos
13
Périodiques
6
Sources
3
Congresses
2
Early accounts to 1600
2
Early works to 1800
2
Maps
2
Anecdotes
1
Biography
1
Conference papers and proceedings
1
Dictionaries
1
Exhibitions
1
Facsimiles
1
Fuentes
1
Juvenile literature
1
Libros electr{acute}onicos
1
Publicaciones seriadas
1