@book{13888,
	author = {Knoke, David. and Burke, Peter J.,},
	title = {Log-linear models /},
	publisher = {Sage Publications,},
	year = {c1980.},
	series = {A Sage university paper},
	address = {Beverly Hills, Calif. ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0654/80017031-d.html}
}