Kansakoululaitos lukuvuonna 1950–51
Folkskoleväsendet läsåret 1950–51
Statistics of primary school education in Finland during
school year 1950–51
Folkskoleväsendet läsåret 1950–51
Statistics of primary school education in Finland during school year 1950–51
Statistics of primary school education in Finland during school year 1950–51