TY  - BOOK
AU  - Sarton,George
TI  - Ensayos de historia de la ciencia
U1  - 509 
PY  - 1968///
CY  - México
PB  - UTEHA
KW  - Science
KW  - History
KW  - Local
N1  - Translation of : Sarton on the history of science; Includes index; Bibliographical footnotes
ER  -