TY  - BOOK
AU  - Blair John M
TI  - Economic concentration :  Structure, behaviour and   
SN  - 0155187813
U1  - X9:517.73.N7, L2 
PY  - 1972///
CY  - New York
PB  - Harcourt Broce Jovanovich U.S .A.     
KW  - Trade
ER  -