@book{946,
	author = {Bock, R. Darrell. and University of California, Los Angeles.},
	title = {Multilevel analysis of educational data /},
	publisher = {Academic Press,},
	year = {c1989.},
	address = {San Diego :},
	note = {Papers and discussions presented at an international conference, organized by the Center for Research in Evaluation, Standards, and Student Testing of UCLA, and by NORC; held Apr. 26-28, 1987, at the Princeton Hyatt Regency Hotel.},
	url = {http://www.loc.gov/catdir/toc/els031/88007577.html}
}