Ielpo, Pierina Source apportionment of groundwater pollutants in Apulian agricultural sites using multivariate statistical analyses: case study of Foggia province. [electronic resource] - Chemistry Central journal May 2012 - S5 p. digital Publication Type: Journal Article ISSN: 1752-153X Standard No.: 10.1186/1752-153X-6-S2-S5 doi