@book{19600,
	author = {Pfiffner, John McDonald, and Fels, Marshall,},
	title = {The supervision of personnel :},
	publisher = {Prentice-Hall,},
	year = {1964.},
	series = {Prentice-Hall industrial relations and personnel series},
	address = {Englewood Cliffs, N.J.:},
	edition = {3d ed.}
}