Arithmetic according to the method of German teacher Grube

Paulson, I.Arithmetic according to the method of a German teacher Gruby: a methodological guide for parents and elementary teachers / Comp.I. Paulson.- 2nd ed.-Sank-Petersburg: Type.N. Tibllen and Comp., 1861. -160, [1] p.: table., Il .. -Bibliogr.In the tuning.Note .. - Ex.: without region..I. Grunt. 1.People (collection).Electronic copy source: PBOriginal storage location: Penza GKM