@book{49441,
	author = {Clark, Ruth Colvin. and ebrary, Inc.},
	title = {Scenario-based e-learning},
	publisher = {Pfeiffer,},
	year = {2013.},
	address = {San Francisco, Calif. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10639267}
}