01269nam0-22003131i-450-99000205354040332120021010000205354FED01000205354(Aleph)000205354FED0100020535420021010d--------km-y0itay50------baitaBreeding pest resistant trees. Proceedings of a N.A.T.O. and N.S.F. advanced study institute on Geneticimprovement for disease and insect Resistance forest trees Held at the Pennsylvania State University, August 30 to September 11, 1964ed by H.D. GerholdOxfordPergamon Press1966505 p.25 cmLotta Biologica e IntegrataPiante ResistentiLotta Biologica631.53Gerhold,H.F. Et AlITUNINARICAUNIMARCBK99000205354040332161 VII B.8/1112335 (30/09/1998)DAGENDAGENBreeding pest resistant trees. Proceedings of a N.A.T.O. and N.S.F. advanced study institute on Geneticimprovement for disease and insect Resistance forest trees Held at the Pennsylvania State University, August 30 to September 11, 1964406013UNINAING01