TY  - BOOK
AU  - Graham, Samuel Alexander.
TI  - Principles of forest entomology
U1  - 634.92 
PY  - 1929///
CY  - New York
PB  - McGraw Hill Book Company
KW  - Forest insects
KW  - Insect pests
KW  - Timber protection
N1  - Includes bibliographical references and index
ER  -