00298nam a2200121Ia 4500020001500000082001700015100002200032245003800054260004800092300002600140500000500166700000500171  a0521286867  a338bW331.ET  aWaterson, Michael  aEconomic theory of the industryb  aCambridgebCambridge University Pressc1984  ax, 243p. Index, Bibl.  a  a