@book{81898,
	author = {Doff, Adrian},
	title = {Empower B1 /},
	publisher = {Cambridge University Press,},
	year = {2015},
	series = {Cambridge English},
	address = {Cambridge :},
	note = {Title on CD. 1. Empower B1 : pre-intermediate class audio CDs -- title on DVD. 1.  Empower B2 : pre-intermediate class DVD . 2. Empower B1 : pre-intermediate DVD-ROM}
}