Black lung benefits provisions of the Federal coal mine health and safety act : hearings before the Committee on Education and Labor, House of Representatives, Ninety-fifth Congress, first session ...
United States.Congress.House. Committee on Education and Labor.
Washington : U.S. Govt. Print. Off.,
1977.
Hearings held March 14-21, 1977.
Includes bibliographical references.
Coal miners
Disability insurance
Lungs