CREATE TABLE [dbo].[Editoriales] (
    [IdEditorial] INT          IDENTITY (1, 1) NOT NULL,
    [IdCiudad]    INT          NULL,
    [Nombre]      VARCHAR (30) NULL,
    [Dirección]   VARCHAR (30) NULL,
    [Telefono]    INT          NULL,
    CONSTRAINT [PK_Editoriales] PRIMARY KEY ([IdEditorial]), 
    CONSTRAINT [FK_Editoriales_Ciudades] FOREIGN KEY ([IdCiudad]) REFERENCES [Ciudades]([IdCiudad])
);

