00451nam a2200145Ia 4500008004100000082002400041100002200065245005100087260000900138300001000147650001700157942000700174952010700181999001700288140113s9999    xx            000 0 und d  a632.953.2:633.49 L2  a" de Bokx, J. A."  aViruses of potatoes and seed-potato production  b1972  a233p.  aPotato virus  cBK  00104070aKYMbKYMd2014-01-13l0o632.953.2:633.49 L2pKBK1950r2014-01-13 00:00:00w2014-01-13yBK  c62906d62906