@book{52305,
	author = {Popham, E. J.},
	title = {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},
	note = {Sobretiro de: J. Soc. Brit. Ent. 3(6) : 268-273, 1951.}
}