Patterson. The Raptors of Iowa. University of Iowa Press.
Lua i Stíl Chicago (17ú heag.)Patterson. The Raptors of Iowa. University of Iowa Press.
Lua MLA (8ú heag.)Patterson. The Raptors of Iowa. University of Iowa Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.