The marketplae : modified market system : a concept study 2026-02-16T01:20:01+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Mahood, R. Wayne; Hickman, Warren L. (Macmillan, 1975)