Essentials of structured COBOL programming 2026-02-15T19:44:00+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Mize, Jan Lee; Cotterman, William W.; Snell, H. Michael (Wadsworth Pub. Co., 1978)