Grass, G. Headbirths or the germans are dying out. A Harvest/HBJ books.
Chicago-referens (17:e uppl.)Grass, Gunter. Headbirths or the Germans Are Dying Out. New York: A Harvest/HBJ books.
MLA-referens (9:e uppl.)Grass, Gunter. Headbirths or the Germans Are Dying Out. A Harvest/HBJ books.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.