Coolidge, C. (1924). Address of President Coolidge at the National Conference on Outdoor Recreation at Washington, D.C., May 22, 1924. G.P.O..
Lua i Stíl Chicago (17ú heag.)Coolidge, Calvin. Address of President Coolidge at the National Conference on Outdoor Recreation at Washington, D.C., May 22, 1924. Washington: G.P.O., 1924.
Lua MLA (8ú heag.)Coolidge, Calvin. Address of President Coolidge at the National Conference on Outdoor Recreation at Washington, D.C., May 22, 1924. G.P.O., 1924.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.