Title: Educational and social economic contributions of the Panama-Pacific International Exposition to Pan-American interests
Subjects: Social sciences, Congresses, Panama-Pacific International Exposition (1915 : San Francisco, Calif.), Pan-American Scientific Congress (2nd : 1915-1916 : Washington, D.C.), Panama-Pacific International Exposition (1915 : San Francisco, Calif.) http://id.loc.gov/authorities/names/n50080906