(NiZBRANNYE PEDAGOGI^ESKIE SO^INENIQ(B.s (NkN(B. 1 (NI (B2 /s - (NpIROGOW(B, (NnIKOLAJ iWANOWI^(B.s; (NsMIRNOW(B, (Nw(B.(Nz(B.s; (NaKADEMIQ PEDAGOGI^ESKIH NAUK rsfsrs ((NmOSKWA (B:s (NiZD(B-(NWO apn rsfsr(B,s, 1952)
Keywords: (NpEDAGOGIKAs