TY  - BOOK
AU  - Drooz,Arnold Thomas
TI  - The larch sawfly: its biology and control 
T2  - Technical bulletin / United States Department of Agriculture
AV  - S21 .A72 no. 1212
U1  - 595.79 
PY  - 1960///
CY  - Washington
PB  - U.S. Dept. of Agriculture
KW  - Larch sawfly
KW  - Control
N1  - Literature cited: p. 45-52
ER  -