TY - RPRT TI - Physical and chemical characteristics of water in coal-mine ponds, eastern Oklahoma, June to November 1977-81 AU - L. J. Slack AU - S. P. Blumer PY - 1984 DO - 10.3133/ofr84446 UR - https://pubs.usgs.gov/publication/ofr84446 ID - ofr84446 ER -