Unity and variety in Muslim civilization 2026-02-16T04:42:16+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Von Grunebaum, Gustave E. (Gustave Edmund), 1909-1972 (Comparative studies of cultures and civilizations, 1955)