00343nam a2200133Ia 4500008004100000082001100041100002400052245002200076260003100098300001000129600002600139600002600165650001800191140113s9999    xx            000 0 und d  a632 J2  a" Stevens, Neil E."  aDisease in plants  b"USA : Waltham mass, 1952"  a219p.  a" Stevens, Russel B."  a" Stevens, Russel B."  aPlant disease