Cita APA

Herwig, H. H. (1994). Hammer or anvil?: Modern Germany 1648-present. Heath.

Citación estilo Chicago

Herwig, Holger H. Hammer or Anvil?: Modern Germany 1648-present. Lexington [u.a.]: Heath, 1994.

Cita MLA

Herwig, Holger H. Hammer or Anvil?: Modern Germany 1648-present. Heath, 1994.