Industrial mineral report / Ontario Dept. of Mines.

no.1 1950; no.2 1951; no.4 1952; no.5 1960; no.8 1962; no.9 1963; no.10 1963; no.10-13 1963-1964; no.11; no.11-13 (1963-64); no.12; no.13; no.14; no.15; no.16; no.17; no.18; no.18-21 (1964-67); no.18-22 1964-1967; no.19; no.20; no.21; no.22 1967; no.22-27 (1967-68); no.23; no.25-26; no.26; no.27; no.28-31 (1969); no.31; no.32 (1970); no.34 (1970); no.36 (1971); no.38 (1971); no.37 (1972); no.39 (1972); no.40 (1972); no.41 (1973); no.42 (1975)