TY - BOOK CN - Y 4.T 19/4: CY - Washington : DA - 1981. ID - 178216 KW - Lungs KW - Disability insurance KW - Coal N1 - At head of title: Joint committee print. PB - U.S. G.P.O., PP - Washington : PY - 1981. T1 - Summary of H.R. 5159 :the Black Lung Benefits Revenue Act of 1981 (including other tax provisions adopted) / TI - Summary of H.R. 5159 :the Black Lung Benefits Revenue Act of 1981 (including other tax provisions adopted) / ER -