Schaums outline of theory and problems of advanced mathematics for engineers and scientists, y cby Murray R. Spiegel 2026-02-15T23:30:50+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Spiegel, Murray R. (McGrawHill, 1971)