@book{276840,
	author = {Szymendera, Scott, and Sherlock, Molly F., and Library of Congress.},
	title = {The Black Lung Program, the Black Lung Disability Trust Fund, and the excise tax on coal :},
	publisher = {Congressional Research Service,},
	year = {2018-},
	series = {Report / Congressional Research Service ;},
	address = {[Washington, D.C.] :},
	note = {The CRS report home page provides access to all versions published since 2018.},
	url = {https://purl.fdlp.gov/GPO/gpo110020}
}