KAMEL, Erian G.2019-04-182019-04-181300-0861http://hdl.handle.net/20.500.12575/58188https://doi.org/10.1501/Vetfak_0000001005THE CONTROL OF BIOMPHALARIA ALEXANDRINA BY THE SNAIL MARlSA CORNUAlUETlS. UNDER SEMI-ENVIRONMENTAL CONDITIONS IN EGYPT