@book{74051,
	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 = {3rd ed.}
}