00409nam a2200133Ia 4500008004100000082002200041100001400063245005800077260003800135300001000173600002900183600001500212650004800227140224s9999    xx            000 0 und d  a632.651:576.88 L5  aMai, W.F.  aPictorial key to genera of plant parasitic nematodes/  aIthacabComstock Publishingc1960  a219p.  a W.F.Mai (and) H.H.Lyon.  aLyon, H.H.  aNematode Diseases of Plants,Plant Nematodes