Understanding Earth 2026-02-15T21:12:13+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Grotzinger, John P.; Jordan, Thomas H. (Thomas Hilman), 1948 (W.H. Freeman and Company, a Macmillan Higher Education Company, 2014)