TY  - BOOK
TI  - Papers on Aphididæ ..
T2  - U.S. Dept. of Agriculture. Bureau of Entomology. Technical series,
AV  - SB822 .A31 no. 25
PY  - 1915///
CY  - Washington
PB  - Govt. Print. Off.
KW  - Aphids
N1  - Papers first published separately, 1912-1914; Bibliography: p. 40; I. Studies on a new species of Toxoptera ... By W.J. Phillips and J.J. Davis.--II. The yellow clover aphis. By J.J. Davis
ER  -