Library co-operation in Great Britain : report of a survey of the National Central Library and The Regional Library Bureaux / Robert F. Vollans for the Joint Working Party of the Executive Committee of the National Central Library and the National Committee on Regional Library Co-operation, December, 1951. Vollans, Robert F. National Central Library (Great Britain) Library cooperation. Libraries Great Britain. 025.6 VOL London : National Central Library, 1952. 1952. 1952 Text xii, 139 p. ; eng Great Britain.