@book{37580,
	author = {Lauer, Robert H.},
	title = {Perspectives on social change /},
	publisher = {Allyn and Bacon,},
	year = {�1982.},
	address = {Boston :},
	edition = {3rd ed.},
	url = {http://www.gbv.de/dms/bowker/toc/9780205075614.pdf}
}