TY  - BOOK
AU  - Graham, S.A.
AU  - Orr, L.W.
TI  - The spruce budworm in Minnesota
U1  - PA-C 634 N4 1933 
CY  - Minnesota, USA
PB  -  University of Minnesota
KW  - Abeto
KW  -  plagas
N1  - Encuadernado con: Orchard insects of the pacific northwest and their control / by E.J. Newcomer
ER  -