TY  - BOOK
AU  - Ball W W Rouse
TI  - Essay on Newtons principia
T2  - Sources of science; 115
U1  - CxK42,1:g, L2 
PY  - 0000///cm.
PY  - 1972///
CY  - New York    
PB  -  Johnson reprint corp.
KW  - Physics
ER  -