Questions of pre-school education.Satone

Questions of pre-school education / S.-Petersburg.o-in promoting doszol.raising children.- St. Petersburg: type-lit.JSC "self-education", 1912-1913.- 24. -A type.Sat2: Spring..Electronic Source: PBSat1. - 1912. -VII, 320 s.: diagonal, graph., Table .. -.Electronic Source: PB