@book{121157,
	author = {Ranganathan, S. R. and Gopinath, M. A.},
	title = {Prolegomena to library classification /},
	publisher = {Asia Pub. House,},
	year = {1967},
	address = {Bombay :},
	edition = {3rd ed.},
	url = {http://dlist.sir.arizona.edu/1151/}
}