Bulletin der Vereinigung Schweizerischer Petroleumgeologen und Petroleumingenieure
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Volume 13 (1946) Issues available
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Volume 12 (1945) Issues available
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Volume 11 (1944) Issues available
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Volume 10 (1943) Issues available
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Volume 9 (1942) Issues available
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Volume 8 (1941) Issues available
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Volume 7 (1940) Issues available
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Volume 5 [i.e. 6] (1939) Issues available
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Volume 4 [i.e. 5] (1938) Issues available
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Volume 3 [i.e. 4] (1937) Issues available
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Volume 2 [i.e. 3] (1936) Issues available
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Volume 1-2 (1934-1935) Issues available