TY  - BOOK
AU  - Easton, Stewart Copinger
TI  - ROGER BACON AND HIS SEARCH FOR A UNIVERSAL SCIENCE
U1  - 921.2 
PY  - 1952///
CY  - New York
PB  - Columbia University Press
KW  - Bacon, Roger, 1214-1294
N1  - University Microfilms Reprint
ER  -