Herbert, U. (1997). Hitler's foreign workers: Enforced foreign labor in Germany under the third reich. Univ Pr..
Chicago-viite (17. p.)Herbert, Ulrich. Hitler's Foreign Workers: Enforced Foreign Labor in Germany Under the Third Reich. Cambridge: Univ Pr., 1997.
MLA-viite (9. p.)Herbert, Ulrich. Hitler's Foreign Workers: Enforced Foreign Labor in Germany Under the Third Reich. Univ Pr., 1997.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.