TY  - BOOK
AU  - Richter Melvin Ed.
TI  - Essays in theory and history :  An approach to the Social Science   
SN  - 674265750
U1  - Vb4, L0 
PY  - 1970///
CY  - Cambridge
PB  - Harvard University Press UK       
KW  - History
N1  - Bibliography p.258-86; Appendix p.241-55; Index:P.287-91
ER  -