Peffley, B. (1996). Mary songs & more Mary songs. Balance House Publications.
Lua i Stíl Chicago (17ú heag.)Peffley, Bill. Mary Songs & More Mary Songs. Norristown, PA: Balance House Publications, 1996.
Lua MLA (8ú heag.)Peffley, Bill. Mary Songs & More Mary Songs. Balance House Publications, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.