@book{231406,
	author = {Gubern Fortuny, Marcel,},
	title = {Políticas de producto /},
	publisher = {UOC, la universidad virtual,},
	year = {[2002]},
	address = {[Barcelona] :},
	note = {On cover: "P01/71017/00221"},
	url = {https://www.digitaliapublishing.com/a/6173/}
}