@book{896,
	author = { 	Nicola Dimitri; Gustavo Piga; Giancarlo Spagnolo and  Gustavo Piga; and Giancarlo Spagnolo},
	title = {Handbook of procurement},
	publisher = {Cambridge University Press,},
	year = { 2006.},
	address = { UK ; New York : },
	note = {Includes index}
}