00257nam a22001097a 4500082001600000100001800016245002900034260005000063300000800113942000700121999001900128  a595.182 THO  aGERALD THORNE  aprinciples of Nematology  aNEWYORKbMCGRAW HILL, BOOK COMPANY, INCc1961  a553  cBK  c369986d369986