@book{8995,
	author = {Christensen, Ronald, and Christensen, Ronald,},
	title = {Log-linear models and logistic regression /},
	publisher = {Springer,},
	year = {c1997.},
	address = {New York :},
	edition = {2nd ed.},
	note = {Earlier ed. published under title: Log-linear models. 1990.},
	url = {http://www.loc.gov/catdir/enhancements/fy0815/97012465-d.html}
}