Chavez-Irwin, D. L. (1978). The secrets of service. Institute Press.
Lua i Stíl Chicago (17ú heag.)Chavez-Irwin, Dixie Lee. The Secrets of Service. Los Angeles: Institute Press, 1978.
Lua MLA (9ú heag.)Chavez-Irwin, Dixie Lee. The Secrets of Service. Institute Press, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.