@book{31781,
	author = {Christensen C. Roland. and Andrews, Kenneth Richmond},
	title = {Business policy},
	publisher = {R. D. Irwin},
	year = {1978.},
	address = {Homewood, Ill.},
	edition = {4 ed.},
	note = {Editions, published in 1965 and 1969, by E. P. Learned.}
}