Literature of the Penza region for 1988.Part 2: (Scientific and Auxiliary Index of Literature)

Literature of the Penza region for 1988.Part 2: (Scientific and Auxiliary Index of Literature).- Penza: [b.I.], 1991. -Appendix No. 1 to the act of acceptance and transfer of digital content (cooperation agreement dated 08/14/2012)..Electronic copy source: Penza