43 lithographs, etchings, linocuts, woodcuts, silkscreens and other works in various graphic techniques by 40 artists from the americas were presented at the riverside art museum, riverside, california. on loan from the idb cultural center; the artistic holdings serve to promote understanding of the cultural heritage of its member countries. included in the exhibit are graphics by important 20th century mexican muralists josé clemente orozco, diego rivera, and david alfaro siqueiros; the surrealist roberto sebastián matta; carlos mérida and others.