Continents adrift and continents aground : readings from Scientific American 2026-02-16T03:39:55+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Wilson, J. Tuzo (John Tuzo), 1908- (W. H. Freeman, 1976)