Dunn, E.S. Social information processing and statistical systems- change and reform - John wiley and sons Newyork 1974 - 246p - Social systems Information processing Social problems Statistical Systems Information resources ISBN: 0-471-22747-1 Nat. Bib. No.: 1586 Nat. Bib. Agency Control No.: 007:3DUN Subjects--Topical Terms: Generalities Universal Decimal Class. No.: 007:3 1