@book{240165,
	author = {Dewey, Melvil, and Comaromi, John P.},
	title = {Dewey decimal classification and relative index :},
	publisher = {Forest Press,},
	year = {1989.},
	address = {New York :},
	edition = {Ed. 20 /},
	note = {Cover title: DDC 20 : Dewey decimal classification.}
}