Directory of special libraries and information centres
- 6th ed.
- Detroit: Gale Research Company, 1963
- ix, 836p.
Vol.1 (Directory of special libraries and information centres and information centres in the united states and Canada) ; ISBN: 0-8103-0258-6 ; xix, 1425p. Vol.2 (Geographic and personnel indexes); ISBN: 0-8103-0259-4 ; v, 776p.