Mine drainage pollution abatement demonstration project state game lands no. 72 Clarion County, Pennsylvania, 190 - 01 - 04 - LD1017 .C8133 1980 A8, Volume: Archives LD1017 .C8133 1980 A8; Volume: Carlson Library Level A Main Quarto Collection TD180 .A8. Clarion University Archives.
Mine drainage pollution abatement demonstration project state game lands no. 72 Clarion County, Pennsylvania, 190 - 01 - 04 - LD1017 .C8133 1980 A8, Volume: Archives LD1017 .C8133 1980 A8; Volume: Carlson Library Level A Main Quarto Collection TD180 .A8. Clarion University Archives. http://as-clarion.klnpa.org/repositories/2/resources/362 Accessed December 24, 2025.
