(N~TO NEOBHODIMO ZNATX O POLNOCENNOJ PI]E (B/s - (NkIRHEN[TEJN(B, (Na(B.(Nm(B.s; (NkROTKOW(B, (Nf(B.(Ng(B.s ((NmOSKWA (B:s (NpI]EPROMIZDAT(B,s, 1952)
Keywords: (NpITANIE(B, (NPOTREBNOSTX W PITANIIs; (NpI]A ZDOROWAQs; (NpITATELXNYE MIKRO\LEMENTYs; (NpITATELXNAQ CENNOSTXs