00489cam a22000977a 4500008004000000082001400040245021300054260005000267300000900317700006500326180718b1963   xxu||||| |||| 00| 0 eng d  aZ3x42 Un3  aAspects of dairy economics: a summary of further research into the economics of milk productionby the provincial agricultural economics servicecby Ministry of Agricultural, Fisheries and Food, United Kingdom  aLondonbHer Majesty's Stationery Officec1963  a56p.  aUnited Kingdom. Ministry of Agricultural, Fisheries and Food