Kraus, H. (1934). Work relief in Germany. Russell Sage Foundation.
Chicago Style aipamenaKraus, Hertha. Work Relief in Germany. New York: Russell Sage Foundation, 1934.
MLA aipamenaKraus, Hertha. Work Relief in Germany. Russell Sage Foundation, 1934.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.