http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bilateral symmetry -- Translatory, rotational, and related symmetries -- Ornamental symmetry -- Crystals. The general mathematical idea of symmetry.
Reprint. originally published: 1952. First Princeton paperback printing: 1982.
Includes bibliographical references and index.