TY  - BOOK
AU  - Hart P E
AU  -  Clarke R
TI  - Concentration in British industry 1935-75 :  A stud   
T2  - National Institute of Economic and Social Research Occasional papers. 32
SN  - 0521233933
U1  - X9:517.3.N75<--N35, M0 
PY  - 1980///
CY  - Cambridge
PB  - Cambridge University Press        
KW  - Trade
ER  -