DOCUMENTATION SURVEY

This is the first annual cumulation of a new indexing service attempting world coverage in geography for periodicals, serials, conference proceedings, and reports. The Institut in Bad Godesberg working with the Zentralstelle für maschinelle Dokumentation (ZMD) records references on a tape typewriter and publishes two‐monthly lists which give the following elements for each entry; UDC number, a set of descriptors, author (both personal and corporate), title, scource, and type of publication.