003570000a2200133000450000500170000008200190001710000160003610000180005224500360007026000340010626000090014030000080014965000660015720250903143937.0  a595.182046 SIN  aSingh, R.S.  aSitaramaiah K  aHandbook of economic Nematology  aNew Delhi, Cosmo Publications  c1993  a336  aEconomic Nematology - Handbook/ Nematode Roof-knot nematooles