@book{1833,
	author = {Nicholas, John M., and Steyn, Herman.},
	title = {Project Management for Engineering, Business and Technology.},
	publisher = {Routledge,},
	year = {2012.},
	address = {London :},
	edition = {4th ed. /},
	note = {Previous ed.: Amsterdam; London: Elsevier Butterworth Heinemann, 2008.}
}