1 option
Black Lung Amendments of 1973, Hearings before the General Subcommittee on Labor of the Committee on Education and Labor, House of Representatives, 93rd Congress, July 11, 17, August 2, 1973, April 10 and June 6, 1974 [1972]
The Penn Libraries is committed to describing library materials using current, accurate, and responsible language. If you discover outdated or inaccurate language, please fill out this feedback form to report it and suggest alternative language.