Russian history and culture [microform] : scarce books on 19th and 20th century Russia from the Helsinki University Library.
Helsingin yliopisto.Kirjasto.
University Microfilms International.Russian history and culture index.
Ann Arbor, Mich. : University Microfilms International,
1978-
Accompanied by printed indexes, catalogued and shelved separately.  Some indexes are cumulative and some index individual units.  Each unit consists of a number of individual titles.