Prevention of Deterioration Center (U.S.). Prevention of deterioration advance list. Prevention of Deterioration Center, National Research Council.
Lua i Stíl Chicago (17ú heag.)Prevention of Deterioration Center (U.S.). Prevention of Deterioration Advance List. Washington, D.C.: Prevention of Deterioration Center, National Research Council.
Lua MLA (8ú heag.)Prevention of Deterioration Center (U.S.). Prevention of Deterioration Advance List. Prevention of Deterioration Center, National Research Council.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.