Παραπομπή σε μορφή APA (7η εκδ.)

Coolidge, C. (1924). Address of President Coolidge at the National Conference on Outdoor Recreation at Washington, D.C., May 22, 1924. G.P.O..

Παραπομπή σε μορφή Chicago (17η εκδ.)

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.

Παραπομπή σε μορφή MLA (8th εκδ.)

Coolidge, Calvin. Address of President Coolidge at the National Conference on Outdoor Recreation at Washington, D.C., May 22, 1924. G.P.O., 1924.