00402nam a2200109Ia 4500008004100000040002500041082001200066100006300078245009100141260005200232300000800284230627s9999 xx 000 0 und d aNORSU-SiacNORSU-Sia a620 L86 aLongland, F. ; compiled and edited by Peter Stern et. al.  0aField engineering: an introduction to development work and construction in rural areas bIntermediate Technology Publications Ltd.c1985 a251