@book{24395,
	author = {Koontz, Harold and O'Donnell, Cyril,},
	title = {Essentials of management /},
	publisher = {TATA mcGraw - hill publishing, },
	year = {c1974.},
	series = {McGraw-Hill series in management},
	address = {New Delhi :},
	edition = {T M H ed.}
}