BURKHARDT, R. W. Our Family Richard W. Burkhardt Dan Ann G. Mc Guinness. Benfic Press.
Lua i Stíl Chicago (17ú heag.)BURKHARDT, Richard W. Our Family Richard W. Burkhardt Dan Ann G. Mc Guinness. Benfic Press.
Lua MLA (8ú heag.)BURKHARDT, Richard W. Our Family Richard W. Burkhardt Dan Ann G. Mc Guinness. Benfic Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.