Costa, H.H.2015-02-092015-02-091967Costa, H.H. (1967) Responses of Gammarus pulex (L.) to Modified Environment II. Reactions to Abnormal Hydrogen Ion Concentrations, Crustaceana, 13: 1-10.http://repository.kln.ac.lk/handle/123456789/5239enResponses of Gammarus pulex (L.) to Modified Environment II. Reactions to Abnormal Hydrogen Ion ConcentrationsArticle