@book{1862,
	author = {Blau, Peter Michael. and American Sociological Association.},
	title = {Approaches to the study of social structure /},
	publisher = {Free Press ,},
	year = {c1975 [ Published 1976].},
	address = {New York :},
	note = {"A Publication of the American Sociological Association."},
	url = {http://www.worldcat.org/title/approaches-to-the-study-of-social-structure/oclc/1500028&referer=brief_results}
}