@book{39699,
	author = {Heppner, Frank H.},
	title = {Teaching the large college class  a guidebook for instructors with multitudes},
	publisher = {Jossey-Bass},
	year = {2007},
	address = {San Francisco (California, Estados Unidos)},
	url = {http://www.loc.gov/catdir/toc/ecip0720/2007024498.html}
}