Литература о Пензенской области за 1982 год. 1-е полугодие: (указатель литературы)

Literature on the Penza region for 1982.1st half-year: (literature pointer).- Penza: [b.I.], 1983. -Appendix No. 1 to the act of acceptance and transfer of digital content (cooperation agreement dated 08/14/2012)..Electronic copy source: Penza