@book{20169,
	author = {Campbell, David J. and Edgar, David},
	title = {Business strategy :},
	publisher = {Palgrave Macmillan,},
	year = {c2011.},
	address = {Basingstoke :},
	edition = {3rd ed.},
	note = {Previous ed.: Oxford: Butterworth-Heinemann, 2002.}
}