@book{4238,
	author = {Piper, James E.},
	title = {Operations and Maintenance Manual for Energy Management },
	publisher = {M E Sharpe Inc,},
	year = {1999.},
	series = {Sharpe professional.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0765600501/chopaconline-20}
}