The guide to physics, drawn up on behalf of the Ministry of Education for Russian gymnasiums, academician and professor E. Lenz

Lenz, E.The guide to physics, drawn up on behalf of the Ministry of Education for Russian gymnasiums academician and professor E. Lenz.- 5th ed.-Sank-Petersburg: [B.and.], 1859. -.1. The people (collection).Electronic copy source: PBOriginal storage location: Penza GKM