TY  - BOOK
AU  - Larrimer, W. H.
AU  - Cartwright, W. B.
TI  - Determination of the porcentage of infestation by the hessian fly phytophaga destructor say
U1  - PA-C 595.77 D5 
CY  - 
PB  - 
KW  - Dipteros
KW  -  Colecciones de escritos  Hessian Flies
N1  - Sobretiro de: Journal of agricultural research 32 (11): 1041-1044, 1926. Encuadernado con: Key toi gall midges (A resume of studies I-VII, itonididae) /by Ephraim Porter Felt                               70-213
ER  -