00275nam a2200097Ia 4500008004100000082001600041100005100057245003900108260002300147300000700170140113s9999    xx            000 0 und d  a631.27   K7  a"Britain-Ministry of Agric., Fisheries & Food"  aWall Construction (Leaflet No. 40)  a1967bHMSOcLondon  a25