Official proceedings of the nineteenth session of the Trans-Mississippi Commercial Congress, held at San Francisco, California, October 6, 7, 8, 9 and 10, 1908

Eitemau Tebyg

• Official proceedings of the seventh convention of the Trans-Mississippi Commercial Congress, held at St. Louis, Mo., November 26, 27, 28 and 30, 1894
  Cyhoeddwyd: (1894)
• Official proceedings of the Trans-Mississippi Commercial Congress, ninth session, held at Assembly Hall, Temple Park, Salt Lake City, Utah, July 14, 15, 16 and 17, 1897
  Cyhoeddwyd: (1897)
• Official proceedings of the twenty-second annual session of the Trans-Mississippi Commercial Congress, held at Kansas City, Missouri, November 14, 15, 16 and 17, 1911
  Cyhoeddwyd: (1911)
• Official proceedings of the eleventh convention of the Trans-Mississippi Commercial Congress, held at Houston, Texas, April 17, 18, 19 and 20, 1900
  Cyhoeddwyd: (1900)
• Official catalogue of the Trans-Mississippi and International Exposition : June first to November first
  Cyhoeddwyd: (1898)