TY  - BOOK
AU  - Graham, Samuel Alexander
TI  - Principles of forest entomology
U1  - 634.967 21st ed.
PY  - 1939///
CY  - New York
PB  - McGraw-Hill
KW  - Entomology
KW  - Forest insects and control
KW  - Insects
KW  - Trees-Diseases and pests
N1  - 367-410 includes index
ER  -