Trapp H. The regional aquifer system:underlying the northern Atlantic Coastal Plain in parts of North Carolina,Virginia,Maryland,Delaware,New Yersey,and New York.Summary / H. Trapp, H. Meisler, 1992. - VII,33 p. p. - Текст : непосредственный.
Trapp H. Hydrogeologic framework of the northern Atlantic Coastal Plain in parts on North Carolina,Virginia,Maryland,Delaware,New Jersey,and New York / H.Trapp, 1992. - 59 p. - Текст : непосредственный.