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Author(s): Ефремов И.А., Вьюшков Б.П.
Series: Труды ПИН. Т. 46.
Year: 1955
Language: Russian
Pages: 196
City: М.-Л.
Tags: Горно-геологическая отрасль;Историческая геология, палеонтология, стратиграфия;