Bates, Marcia J., ed. ENCYCLOPEDIA of library and information sciences - 3rd ed. - Boca Raton CRC Press 2010 - 7v. (v.1-lxxxix, 854; v.2-lxxxix, 856-1654; v.3-lxxxix, 165 - 6 . ISBN: 9780849397127 Dewey Class. No.: 20.3 / ENC