Original: Happy Birthday, Hans. MADE OUT OF TIN. Mark Burrows. Choir sheet music. Happy Birthday, Hans. For Choral. CLASSRM KIT. Shawnee Press.
Tradução: Feliz cumpleaños, Hans. UN PATO ENTRE LOS CISNES. Marcos Burrows. Partituras Coro. Feliz cumpleaños, Hans. Para Coral.