00405nam a2200133Ia 450000100060000000800410000602000070004704000130005408200190006724500940008626000730018030000110025354600070026461541141120s9999    xx            000 0 und d  aNA  cPK-LaUMT  a 625.734bPRO-  aProceedings 2nd international drainage workshop Washington, D. C. USA December 5-11, 1982  aCarmel,USA:bThe Corrugated Plastic Tubing Association of USA,c1982  a240 p.  aEN