Author
Aurand, Harold W.
2
Pennsylvania Historical and Museum Commission
2
Arnold, Andrew Bernard
1
Harvan, George
1
Keil, Jacqueline M.
1
Keil, Thomas J.
1
Mosley, Philip, 1947-
1
Pennsylvania. Board of Commissioners for the Second Geological Survey
1
Schaefer, Donald Fred, 1942-
1
Scranton Anthracite Museum and Iron Furnaces Associates
1