Wells, E. (1964). Carlos P. Romulo: Voice of freedom. Funk and Wagnalls.
Lua i Stíl Chicago (17ú heag.)Wells, Evelyn. Carlos P. Romulo: Voice of Freedom. New York: Funk and Wagnalls, 1964.
Lua MLA (9ú heag.)Wells, Evelyn. Carlos P. Romulo: Voice of Freedom. Funk and Wagnalls, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.