TY  - BOOK
AU  - Keller,John Esten
TI  - Alfonso X el Sabio
T2  - Twayne's world authors series
U1  - 861.1 
PY  - 1967///
CY  - New York
PB  - Twayne Publishers
KW  - Alfonso
N1  - Bibliographical reference and index
ER  -