Generoa
Libros electrónicos
106
Electronic books
44
Electronic journals
7
Periodicals
7
Biography
5
Pictorial works
3
Biographies
2
Congresses
2
Internet resources
2
Libros electr{acute}onicos
2
Biografía
1
Case studies
1
Catalogs
1
Computer network resources
1
Congresos
1
Diaries
1
Early works to 1800
1
Exhibitions
1
Exposiciones
1
Formulae, receipts, prescriptions
1
Historia
1
Libros electronicos
1
Périodiques
1
Revistas electrónicas
1