TY  - BOOK
AU  - Hannah Leslie
AU  -  Kay J. A.
TI  - Concentration in modern industry :  Theory, measure   
SN  - 0333190823
U1  - X93.3.N7, L7 
PY  - 1977///
CY  - London
PB  - Macmillan U. K.        
KW  - Public Sector Economics
ER  -