Educational documentation and information :

v.45 1971; v.45 yr.1971; v.45 (no.178-181;1971); no.178-182 (1971-72) (45th-46th); year 45-46 (1971-72); v.46 1972; v.46 yr.1972; v.46 (no.182-185;1972); no.181-189 (1971-73); no.183-187 (1972-73); v.47 1973; v.47 yr.1973; v.47 (no.186-189;1973); no.188-192 (1973-74); year 47-48 (1973-74); v.48 1974; v.48 yr.1974; v.48 (no.190-193;1974); v.49 1975; v.49 yr.1975; v.49 (no.194-197;1975); no.190-201 (1974-76); no.193-201 (1974-76); year 49-50 (1975-76); v.50 1976; v.50 yr.1976; v.50-51 (no.198-205;1976-77); v.51 1977; v.51 yr.1977; year 51-52 (1977-78); no.208 1978; v.52 1978; v.52 yr.1978; v.52 (no.206-209;1978); no.202-209 (1976-79); no.202-213 (1977-79); v.53 1979; v.53 yr.1979; v.53 (no.210-213;1979); no.210-217 (1979-80) (53rd-54th); no.211-214 1979-1980; year 53-54 (1979-80); v.54 1980; v.54 yr.1980; v.54 (no.214-217;1980); v.55 1981; v.55 yr.1981; no.214-225 (1980-82); no.218-225 (1981-82); v.55-56 (no.218-225;1981-82); no.223 1982; v.56 1982; v.56 yr.1982; no.226-229 (1983); year 57 (1983); v.57 yr.1983; v.57 (no.226-229;1983); no.230-233 (1984); no.230 1984; no.231 1984; no.232 1984; year 58 (1984); v.58 (no.230-233;1984); v.183; v.193; v.201; v.202; v.203; v.204; v.206; v.209; v.227