TY  - BOOK
AU  - Metcalf,C.L.
AU  - Metcalf,R.L.
TI  - Destructive and useful insects : their habits and control
U1  - 632.7 M588D 1951 
PY  - 1951///
CY  - London
PB  - McGraw-Hill Book Company Inc.
KW  - Insect pests
KW  - Beneficial insects
N1  - Index
ER  -