00295nam a2200109Ia 4500008004100000040002500041082001200066100001900078245003500097260004500132300000800177230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a691 St9  aStulz, Roland  0aAppropriate building materials  bIntermediate Technology Publications Ltd  a324