TY  - BOOK
AU  - Gerhold H D
TI  - Breeding pest-resistance trees
U1  - 632.9 
PY  - 1966///
CY  - London
PB  - Pergamon Press
KW  - Agricultural pest control
N1  - Proc. of a NATO and NSF advanced study institute, Aug.30-Spt.11, 1964
ER  -