Suggested Topics within your search (to browse all results for a topic, do a new Subject search).
Suggested Topics within your search (to browse all results for a topic, do a new Subject search).
Geology
190
Mines and mineral resources
73
Geology, Stratigraphic
18
Natural gas
14
Coal
13
Groundwater
13
Petroleum
13
more ...
1
2
by Jonas, Anna I. 1881-1974.
Published 1930
Subjects:
“...Geology Pennsylvania Lancaster County....”Published 1930
Book
3
by Jonas, Anna I. 1881-1974.
Published 1926
Subjects:
“...Geology Pennsylvania Lancaster County....”Published 1926
Book
4
by Jonas, Anna I. 1881-1974.
Published 1944
Subjects:
“...Geology Pennsylvania York County....”Published 1944
Book
5
by Shirk, William R.
Published 1980
Subjects:
“...Geology Pennsylvania Adams County Guidebooks....”Published 1980
Book
6
by Shaffner, Marchant N. 1897-
Published 1946
Subjects:
“...Geology Pennsylvania Smicksburg Region....”Published 1946
Book
7
8
by Lytle, William S.
Published 1970
Subjects:
“...Petroleum Geology Pennsylvania McKean County....”Published 1970
Book
9
10
11
Published 1970
Subjects:
“...Petroleum Geology Pennsylvania....”
Book
12
Published 1953
Subjects:
“...Geology Pennsylvania Guidebooks....”
Conference Proceeding
Book
13
by Johnson, Meredith E., 1897-
Published 1929
Subjects:
“...Geology Pennsylvania Pittsburgh....”Published 1929
Book
14
Published 1986
Subjects:
“...Geology Pennsylvania Bibliography....”
Government Document
Book
15
Full text available in EBSCO Open Access Journals: 1969 to present
Electronic
Journal
Serial
16
by McGlade, William G.
Published 1967
Subjects:
“...Petroleum Geology Pennsylvania Washington County....”Published 1967
Book
17
by Lytle, William S.
Published 1965
Subjects:
“...Petroleum Geology Pennsylvania Warren County....”Published 1965
Book
18
by McGlade, William G.
Published 1964
Subjects:
“...Petroleum Geology Pennsylvania Warren County....”Published 1964
Book
19
Published 1970
Subjects:
“...Geology Pennsylvania Allegheny County....”
Book
20