WALTON, B C Development of resistance to molluscicides in Oncomelania nosophora. [electronic resource] - The American journal of tropical medicine and hygiene Nov 1958 - 618-9 p. digital Publication Type: Journal Article ISSN: 0002-9637 Standard No.: 10.4269/ajtmh.1958.7.618 doi Subjects--Topical Terms: AnimalsNitrophenols--pharmacologyPhenols--pharmacology