00273nam a2200097Ia 4500082001600000245002800016100006400044942000700108008004100115999001900156  aST 620 MOOL 0aEngineering science N4   a MOOLMAN, C L.     Johannesburg, 1997    2nd ed     926743  cBK210817s9999    xx            000 0 und d  c384839d384838