http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Presents instructions for speaking thirteen secret languages, including Pig Latin, one of the best known and easiest codes to learn, and Boontling, developed by people in a California town.
collected by Alvin Schwartz ; pictures by Margot Zemach.