TY  - BOOK
AU  - Painter, Reginald  H
TI  - The biological strains fo hessian fly
U1  - PA-C 595.77 D5 
CY  - 
PB  - 
KW  - Dipteros
KW  -  Colecciones de escritos  Hessian flies
N1  - Sobretiro de: Journal of economic entomology 23 (2): 322-326, 1930. Encuadernado con: Key to gall midges (A resume of studies I-VII, itonididae) /by Ephraim Porter Felt                                      70-214
ER  -