@book{2250,
	author = {Collier, L. H. and Oxford, J. S.},
	title = {Human virology :},
	publisher = {Oxford University Press,},
	year = {1993.},
	address = {Oxford ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0635/91024098-d.html}
}