Algebra for beginners : including easy graphs (with answers) 2026-02-17T09:20:01+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Hall, H. S. (Henry Sinclair), 1848-1934; Knight, S.R (A.I.T.B.S, 2004)