Principles of learning : from laboratory to field 2026-02-15T15:16:27+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Navarick, Douglas J., 1946- (Addison-Wesley Pub. Co., 1979)