Pan American Union. (1933). Theses on Pan American Topics: Prepared bu candidates for degrees in Universities and colleges in the United States. Pan American Union.
Cita Chicago (17th ed.)Pan American Union. Theses on Pan American Topics: Prepared Bu Candidates for Degrees in Universities and Colleges in the United States. Washington: Pan American Union, 1933.
Cita MLA (9th ed.)Pan American Union. Theses on Pan American Topics: Prepared Bu Candidates for Degrees in Universities and Colleges in the United States. Pan American Union, 1933.
Atenció: Aquestes cites poden no estar 100% correctes.