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OCR-text (abbyy)
Bilibin,V
Methods of estimating underground oil re-
serves.
8:o Leningrad 1936.
International geological congress,17session,
USSR,1937.
OCR-text (abbyy-crop)
Bilibin,
Methods of estimating underground oil re-
serves.
8:o Leningrad 1936.
International geological congress,17session
USSR, 1937.
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