Principles of stratigraphy 2026-02-16T00:23:25+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Dunbar, Carl Owen, 1891-; Rodgers, John, 1914- (Wiley, 1957)