Howe, R. L. (1971). Survival plus. Seabury Press.
Lua i Stíl Chicago (17ú heag.)Howe, Reuel L. Survival Plus. New York: Seabury Press, 1971.
Lua MLA (8ú heag.)Howe, Reuel L. Survival Plus. Seabury Press, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.