@book{2849,
	title = {Geology of coal.},
	publisher = {Distributed worldwide by Van Nostrand Reinhold,},
	year = {1984.},
	series = {Benchmark papers in geology.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0879330996/chopaconline-20}
}