@book{75756,
	author = {Backer, Thomas E. and Rogers, Everett M.},
	title = {Designing health communication campaigns :},
	publisher = {Sage,},
	year = {c1992.},
	address = {Newbury Park, Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0655/92006165-d.html}
}