Iannone. The Great Maya Droughts in Cultural Context. University Press of Colorado.
Lua i Stíl Chicago (17ú heag.)Iannone. The Great Maya Droughts in Cultural Context. University Press of Colorado.
Lua MLA (9ú heag.)Iannone. The Great Maya Droughts in Cultural Context. University Press of Colorado.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.