TY  - BOOK
AU  - Gerhold,Henry D.
ED  - N.A.T.O. and N.S.F. Advanced Study Institute on Genetic Improvement for Disease and Insect Resistance of Forest Trees
ED  - North Atlantic Treaty Organization
ED  - National Science Foundation (U.S.)
ED  - Pennsylvania State University.
TI  - Breeding pest-resistant trees: proceedings 
U1  - 581.2063 
PY  - 1966///
CY  - Oxford
PB  - Symposium Publications Division, Pergamon Press
KW  - Trees
KW  - Breeding
KW  - Congresses
KW  - Disease and pest resistance
ER  -