The International,standardisation of library statistics : [report of the IFLA/ISO conferences at Paris, 1967, and The Hague, 1966 /
Mallaber, Kenneth Aldridge.
Nielsen, Torben,1918 November 3-
Torrington, F. W.
International Organisation for Standardisation.
International Federation of Library Associations.Statistics Committee.
Sanctuary Buildings, Great Smith St., London S.W.1 : I.F.L.A. Statistics Committee,
1968.
Text in English and French.