Hamilton P.A. Water-quality assessment of the Delmarva Peninsula, Delaware, Maryland and Virginia : Analysis of available groundwater-quality data through 1987 / P.A.Hamilton,R.J.Shedlock,P.J.Phillips, 1991. - VIII,65 p. p. - Текст : непосредственный.
Rinella J.F. Persistence of the DDT pesticide in the Yakima River Basin Washington / J.F.Rinella,P.A.Hamilton,S.W.McKenzie, 1993. - 23 p. - Текст : непосредственный.
Hamilton P.A. Are fertilizers and pesticides in the ground water? A case study of the Delmara Peninsula,Delaware,Maryland,and Virginia / P.A.Hamilton,R.J.Shedlock, 1992. - 15 p. - Текст : непосредственный.