Bulletin of the Geological Survey of Great Britain.

no.1-3 1939; no.1 1939; no.2 1939; no.3 1951; no.4 1952; no.1-6 (1939-54); no.5 1954; no.6 1954; no.7 1955; no.8 1955; no.9 1955; no.10 1955; no.7-11 (1955-56); no.11 1956; no.7-12 (1955-57); no.12 1957; no.13 1957; v.1-12(1939-1957); v.4-12; v.4-15 1952-58; no.14 1958; no.15 1958; no.12-16 (1957-60); no.16 1960; no.17 1961; v.13-18; v.16-20 1960-63; no.17-20 (1961-63); no.18-20 1961-1963; no.19-21 (1962-64); no.21 1964; no.22 1965; v.19-21; v.19-22(1962-1965); v.21-25 1964-66; no.24 1966; no.25 1966; no.26 1967; no.27 1967; no.26-28 (1967-68); no.28 1968; v.22-25; v.24-27(1966-1967); v.26-27; v.26-30 1967-69; no.29 1969; no.30 1969; no.29-31 (1969-70); no.31-33 (1970); no.33 1970; v.28-31; v.28-33(1968-1970); v.31-34 1970-71; no.34 1971; no.36 1971; no.37 1971; v.32-35; v.34-37(1971); v.35-39 1971; no.38 1972; no.39 1972; no.40 1972; no.42 1972; v.36-39; v.38-42(1972); v.40-44; v.40-46 1972; no.40-43 (1972-73); no.43 1973; no.44 1973; no.41-47 (1972-74); no.44-48 (1973-74); v.43-48(1973-1974); no.48-54 (1974-75); v.45-49; v.47-54 1974-75; no.55-59 (1975-77); v.49-54(1975); v.50-54; v.55-57; v.55-56 1975-1977; v.57 1977; v.58-63; v.60-69(1978); v.62 1977; no.62-64 1977-1978; v.59-60 1977-1978; v.63-64 1977-1978; no.60-65 (1978); no.66-68 1978; v.56-58(1977-1978); v.64-70; v.66 1978; no.66-70 (1978-79); v.23(1965); no.4-7; no.8-11; no.12-15; no.13-18; no.16-18; no.19-21; no.22-25; no.22-24; no.25-26; no.26-27; no.27-28; no.28-30; no.29-30; no.31-32; no.33-35; no.34-36; no.36-38; no.37-40; no.39-41; no.42-44; no.45; no.46-50; no.51-54; no.55; no.56; no.57; no.58