@book{19636,
	author = {Pfiffner, John McDonald,},
	title = {The supervision of personnel  :},
	publisher = {Prentice-Hall,},
	year = {1958.},
	series = {Prentice-Hall industrial relations and personnel series},
	address = {Englewood Cliffs, N.J.,},
	edition = {2d ed.}
}