Estudios geológicos.

1945-46; no.1-3 1945-1946; no.1-4 (1945-46); v.1-2; v.1-2 1945-1946; v.3-4; v.3 1947; 1947-48; no.5-8 1947-48; v.4,no.7-8 1947-1948; v.4-5 1947-1949; v.5-6; v.5,no.9-10 1949; no.9-12 1949-50; no.11 1950; v.6 1950; v.6,no.11-12 1950; v.7-8; v.7 1951; no.13-16 1951-52; v.8 1952; no.17-20 1953; v.9:17-20(1953); v.9 1953; no.21-24 1954; v.10 1954; no.25-28 1955; v.11 1955; 1955-56; no.29-36 1956-57; v.12-13 1956-1957; no.37-44 (1958-59); v.14-15(1958-1959); v.14-15 1958-1959; v.16-17 1960-1961; v.17-18; v.18-21 1962-1965; v.19-20; v.21-22; v.22-23 1966-1967; v.23-24; v.24-25 1968-1969; v.25; v.26; v.26 1970; v.27; v.27 1971; v.28; v.28 1972; v.29; v.29 1973; v.30; v.30 1974; v.31; v.31 1975; v.32; v.32 1976; v.33; v.33 1977; v.34; v.34 1978; v.35 1979; v.36; v.36 1980; v.36-37(1980-1981); v.37; v.37 1981; v.37 no.1-2 1981; v.37 no.3-4 1981; v.38; v.38 1982; v.39 1983; v.40 1984; v.41 1985; v.42 1986; v.43 1987; v.44 1988; v.45 1989; v.46 1990; v.47 1991; v.48 1992; v.50-54 1994-95; v.50-51(1994-1995); v.52-53 1996-97; v.54-55 1998-99; v.56-57 2000-2001; v.58-59 2002-2003; v.60 2004; v.60-61(2004-2005); v.61 2005; v.62-63 2006-2007; v.66:2(2010); v.66 (2010); v.66:1 (2010); v.67 (2011); v.68 (2012); v.10(1954); v.49(1993); no.1-4; no.5-7; no.8-9; no.10-12; no.13-14; no.15-18; no.19-24; no.25-28; no.29-32; no.33-36; no.37-40; no.41-44; Suppl.