Steck, F. B. (1947). Christopher Columbus and the Franciscans. Washington, D.C..
Lua i Stíl Chicago (17ú heag.)Steck, Francis Borgia. Christopher Columbus and the Franciscans. Washington, D.C., 1947.
Lua MLA (8ú heag.)Steck, Francis Borgia. Christopher Columbus and the Franciscans. Washington, D.C., 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.