Title: The fourth-dimensional reaches of the exposition
Subjects: Panama-Pacific International Exposition (1915 : San Francisco, Calif.), Fourth dimension, Panama-Pacific International Exposition (1915 : San Francisco, Calif.) http://id.loc.gov/authorities/names/n50080906, Panama-Pacific International Exposition (1915 : San Francisco, Calif.) (uri) http://id.loc.gov/authorities/names/n50080906 (uri) http://viaf.org/viaf/sourceID/LC|n50080906