Problemi attuali di scienza e di cultura.

no.1-15; no.16-30; no.31-44; no.45-51 1947; no.52-57 1947; no.6-10 inc. 1948; no.11 1949; no.12-22 1949-1950; v.66 1964; v.90 1967; no.64-70; no.71-81; no.82-99; no.111-112; no.114-126; no.120-126; no.128-134; no.135-136; no.137-138; no.139-141 1970; v.134 1970; no.142-156 1970-71; v.201 1974; v.212 1975; no.157-160; no.161-167; no.169; no.170-178; no.171 pt.3; no.184-189; no.190-192; no.191; no.193-197; no.195; no.202-207; no.205; no.208-213; no.214-221; no.216; no.221 pt.2; no.222-235; no.236-247; no.237 yr.1978; v.255 1982; v.259 1986; v.260 1986; no.251-256; no.257-263; no.261 yr.1987; no.262 yr.1987; no.263 yr.1987; no.264 yr.1990; no.264-265 1990; no.265 yr.1990; no.266 (1991); no.267 1994