TY  - BOOK
AU  - Whitehead, Alfred North,
AU  - Russell, Bertrand ,
TI  - Principia mathematica
U1  - 510.1 WHI 
PY  - 1925///, repr. 1950
CY  - Cambridge
PB  - The University Press
KW  - Mathematics
KW  - Philosophy
KW  - Logic, Symbolic and mathematical
ER  -