Knowles, G. E. (1990). A world to love. Review and Herald.
Lua i Stíl Chicago (17ú heag.)Knowles, George E. A World to Love. Hagerstown, MD: Review and Herald, 1990.
Lua MLA (9ú heag.)Knowles, George E. A World to Love. Review and Herald, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.