http://hdl.handle.net/10973/54175 2026-08-16T13:50:47Z http://hdl.handle.net/10973/54176 Dewey Decimal Classification. Edition 20. Vol. 1 to Vol. 4 Dewey, Melwil; Comaromi, John P; Beall, Jullianne; Matthews, Winton E; New, Gregory R 1989-01-01T00:00:00Z