@book{4518,
	author = {United States},
	title = {Survey of government assistance for the world's hard coal industries.},
	publisher = {U.S. Dept. of Commerce, International Trade Administration, Office of Energy},
	year = {[1989]},
	address = {[Washington, D.C.?]},
	note = {Shipping list no.: 89-347-P.}
}