@book{139,
	author = {Bernardi, Bernardo.},
	title = {Age class systems :},
	publisher = {Cambridge University Press,},
	year = {1985.},
	series = {Cambridge studies in social anthropology ;},
	address = {Cambridge [Cambridgeshire] ;},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/cam031/84029394.html}
}