@book{3472,
	author = {ROBERTS, M. J. and STEVENSON, H. H., SAHLMAN, W. A., MARSHALL, P. W. & HAMERMESH, R. G.},
	title = {New Business Ventures and the Entrepreneur.},
	publisher = {McGraw-Hill,},
	year = {2007.},
	address = {Boston,},
	edition = {6th Ed.}
}