TY  - BOOK
AU  - Whitehead Alfred North
AU  -  Russell Bertrand
TI  - Pricnipia mathemation
U1  - R14xN03, J0;F7.1-.2 (=) 
PY  - 1927///
CY  - Cambrudge
PB  - CUP       
KW  - PHILOSOPHY
ER  -