TY  - BOOK
AU  - Isaac Newton
TI  - Mathematical principles of natural philosophy
U1  - 30 
PY  - 1952///
CY  - Chicago
PB  - Encyclopaedia Britanica, Inc
N1  - Isaac Newton: Mathematical principles of natural philosophy.  Chicago.  Encyclopaedia Britanica, Inc, 1952.--(030NEW)
ER  -