Economic principles and urban problems 2026-02-15T15:34:31+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Bish, Robert L.; Kirk, Robert J., 1937 (Prentice-Hall, 1974)