@book{20243,
	author = {Garrison, D. R. and Vaughan, Norman D.,},
	title = {Blended learning in higher education :},
	publisher = {Jossey-Bass,},
	year = {c2008.},
	address = {San Francisco :},
	edition = {1st ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0739/2007028790-b.html}
}