@book{26495,
	author = {United States. and Parker, James S.},
	title = {Coal.},
	publisher = {Govt. print off.,},
	year = {1926.},
	address = {Washington,},
	note = {Paged continuously: v. 1, p. 1-175;  v. 2, iii, [177]-433 p.; v. 3, iii, [435]-571 p.}
}