@book{80576,
	author = {Adams, Ernest. and Rollings, Andrew.},
	title = {Fundamentals of game design /},
	publisher = {Pearson Prentice Hall,},
	year = {2007.},
	series = {Game design and development series},
	address = {Upper Saddle River, N.J. :},
	url = {http://www.loc.gov/catdir/toc/ecip0617/2006023805.html}
}