TY  - BOOK
AU  - Elton,Geoffrey Rudolph
TI  - Political history: principles and practice 
PY  - 1970///
CY  - New York, London
PB  - Basic Books
KW  - Political history
KW  - World
N1  - Index p. 181-184; Contents: The categories.-Criticism.-Evidence.-Explanation and cause.-The end product
ER  -