(1921). Great political Documents of the United States of America. Insel-Verlag.
Chicago-Zitierstil (17. Ausg.)Great Political Documents of the United States of America. Leipzig: Insel-Verlag, 1921.
MLA-Zitierstil (8. Ausg.)Great Political Documents of the United States of America. Insel-Verlag, 1921.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.