Pierik, M. (1949). When the people sang. McLaughlin & Reilly.
Lua i Stíl Chicago (17ú heag.)Pierik, Marie. When the People Sang. Boston, Mass.: McLaughlin & Reilly, 1949.
Lua MLA (8ú heag.)Pierik, Marie. When the People Sang. McLaughlin & Reilly, 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.