@book{17926,
	author = {Russell, Donna},
	title = {Cases on collaboration in virtual learning environments},
	publisher = {Information Science Reference,},
	year = {c2010.},
	address = {Hershey :},
	note = {"Premier reference source"--Cover},
	url = {http://www.netlibrary.com.libraryumpsa.idm.oclc.org/urlapi.asp?action=summary&v=1&bookid=293221}
}