Catalogue Persistent Identifier
https://nla.gov.au/nla.cat-vn4012723
APA Citation
Barker, James L. & Geological Survey (U.S.). (1987). Pennsylvannia ground-water quality. [Reston, Va.?] : Denver, CO : Department of the Interior, U.S. Geological Survey ; For sale by Open-File Services Section
MLA Citation
Barker, James L. and Geological Survey (U.S.). Pennsylvannia ground-water quality [microform] / by James L. Barker Department of the Interior, U.S. Geological Survey ; For sale by Open-File Services Section [Reston, Va.?] : Denver, CO 1987
Australian/Harvard Citation
Barker, James L. & Geological Survey (U.S.). 1987, Pennsylvannia ground-water quality [microform] / by James L. Barker Department of the Interior, U.S. Geological Survey ; For sale by Open-File Services Section [Reston, Va.?] : Denver, CO
Wikipedia Citation
{{Citation | title=Pennsylvannia ground-water quality [microform] / by James L. Barker | author1=Barker, James L., 1936- | author2=Geological Survey (U.S.) | year=1987 | publisher=Department of the Interior, U.S. Geological Survey ; For sale by Open-File Services Section | language=English }}