00257nam a2200097Ia 4500008004100000082001500041100001300056245005500069260002700124300000800151140113s9999    xx            000 0 und d  a501.2   K4  aH.M.S.O.  aCommercial Glasshouses : Bulletin 115. 4th edition  a1964bH.M.S.O.cLondon  a111