(Q106179266)
Statements
Vyhláška o učebních oborech (Czech)
0 references
25 July 1961
0 references
3 July 1962
23 August 1962
25 April 1963
29 April 1964
17 August 1965
73/1961 Sb.
0 references
25 July 1961
1 September 1965