00267nam a2200097Ia 4500008004100000082002200041100002200063245004100085260003000126300001300156260811b        |||||||| |||| 00| 0 eng d  a330.122bAn568.OC  aAndrews, P. W. S.  aOn competition in economic theoryb/  aLondon:bMacmillan,c1964  ax, 141p.