@book{40021,
	author = {Martínez Gracia, Amaya, and Martínez Gracia, Amaya,},
	title = {Disminución de costes energéticos en la empresa :},
	publisher = {FC Editorial,},
	year = {[2012]},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/37737/}
}