Meisel, P. (2012). Bird-friendly nest boxes and feeders. Fox Chapel Pub..
Lua i Stíl Chicago (17ú heag.)Meisel, Paul. Bird-friendly Nest Boxes and Feeders. East Petersburg, PA: Fox Chapel Pub., 2012.
Lua MLA (8ú heag.)Meisel, Paul. Bird-friendly Nest Boxes and Feeders. Fox Chapel Pub., 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.