Public education in the USSR, 1971-1973
английский (eng)/Public education in the USSR : 1971-1973 / USSR Min. of education.Public education in the USSR : 1971-1973 / USSR Min. of education.Public education in the USSR : 1971-1973.M./, 1973 ( ). - 1973. - 43 с. ; 21 см см.Public education in the USSR : 1971-1973. M., 1973 .
"The main official acts passed in 1970-1972": с. 41-42. "The main official acts passed in 1970-1972": с. 41-42.Пр5-550/
"The main official acts passed in 1970-1972": с. 41-42. "The main official acts passed in 1970-1972": с. 41-42.Пр5-550/