TY  - BOOK
AU  - Popham, E. J.
TI  - A study of the changes of the water bug fauna of north survey from 1946 to 1950 with special reference to the migration of Corixids
KW  - Corixidos
N1  - Sobretiro de: J. Soc. Brit. Ent. 3(6) : 268-273, 1951
ER  -