About saving forces and time in self-education

Rubakin, Nikolay Alexandrovich (1862-1946).On the savings of forces and time in self-education: Probably.Report on one experiment practice.Assistance to all seeking self-education in relation to their personal.features, as well as to the conditions of their lives: Dokl., Cheat.On the first wives.Congress in wives.Education in St. Petersburg 3 Jan.1913 / N.A.Rubakin.- St. Petersburg: Type.JSC type.Cases, 1914. - [6], 122 p.;twenty. - .Electronic Source: PB