?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Hallett%2C+BM&rft.aufirst=BM&rft.aulast=Hallett&rft.title=Journal+of+Hydrology%3A+Regional+Studies&rft.pages=111-130&rft.issn=2214-5818&rft.issue=Part+A&rft.atitle=Mineralogical+sources+of+groundwater+fluoride+in+Archaen+bedrock%2Fregolith+aquifers%3A+Mass+balances+from+southern+India+and+north-central+Sri+Lanka&rft.volume=4&rft.date=September+2015&rft.genre=article