TY - CHAP T1 - From the ground up: nematode ecology in bioassessment and ecosystem health T2 - Plant-Nematode Interactions(Agronomy Monograph) Y1 - 1998 A1 - R. K. Niles A1 - Diana W. Freckman JF - Plant-Nematode Interactions(Agronomy Monograph) ER -