Originál: Liederbuch Heft 1. For voice. If You're Happy And You Know It. Nobody Knows The Trouble I See. Voice sheet music.
Preklad: Songbook Volume 1. Medzinárodné. Dole Mojžiša. We Shall Overcome. Hlas noty. Songbook Volume 1 upravil Beate Dapper. Pre hlasu.
