Herrick, R. (1898). The gospel of freedom. Macmillan.
Lua i Stíl Chicago (17ú heag.)Herrick, Robert. The Gospel of Freedom. New York: Macmillan, 1898.
Lua MLA (8ú heag.)Herrick, Robert. The Gospel of Freedom. Macmillan, 1898.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.