Macroinvertebrate recolonization of mine acid substrate in a single riffle of Cherry Run, Armstrong Co., Pennsylvania, 190 - 01 - 04 - LD1017 .C8133 1974 V3, Volume: Archives LD1017 .C8133 1974 V3; Volume: Carlson Library Level A Main Quarto Collection QH96 .V3. Clarion University Archives. http://buoy1.klnpa.org/repositories/2/resources/324 Accessed April 28, 2025.