Essays on the history of exact sciences.Ext.3. How the concept of number was gradually summarized

Lebedev, V.I.Essays on the history of exact sciences.- Moscow: [B.I.], 1916-1919.-.1. The people (collection).Electronic copy source: PBOriginal storage: RSGMUExt.3: How the concept of number was gradually summarized.- Type.T.F.Dortman, 1917. -79, [1] p.: il., schemes., Portra .. -Bibliogr.In the settling.Note .. - Ex.: without region..1. The people (collection).Electronic copy source: PBOriginal storage: RSGMU