Schaum's outline of theory and problems of advanced calculus 2026-02-16T12:15:44+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Wrede, Robert C.; Spiegel, Murray R. (McGraw Hill, 2002)