TY  - BOOK
AU  - Postan M M
TI  - Fact and relevance :  Essays on historical method   
SN  - 0521078415
U1  - Vb4, L1 
PY  - 1971///
CY  - London
PB  - Cambridge University Press U. K.      
KW  - History
N1  - Index:P.183-88
ER  -