FERENCE, B. B. (1991). Planethood The Key To Your Future Benjamin B. Ference, Kenkeyes. Loveline Books.
Lua i Stíl Chicago (17ú heag.)FERENCE, Benjamin B. Planethood The Key To Your Future Benjamin B. Ference, Kenkeyes. Loveline Books, 1991.
Lua MLA (8ú heag.)FERENCE, Benjamin B. Planethood The Key To Your Future Benjamin B. Ference, Kenkeyes. Loveline Books, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.