I have a book published by the Workmen's Circle in 1983 called "Mir Zaynen Do: Lider Fun Di Getos Un Lageren (We Are Here: Songs of the Holocaust [literal translation: Songs of the Ghettos and Camps])," compiled by Eleanor Mlotek and Malke Gottlieb, with 43 songs in Yiddish, transliterated Yiddish, and English. It appears to be out of print, though. But Jerry Silverman has a new book (2001) called Undying Flame: Ballads and Songs of the Holocaust, with 110 songs in 16 languages. That would be a good place to start.

Aloha,
Mark