By Schindel, Angel..
Buenos Aires Ediciones Macchi 1971 .
426 p. , Includes legislation. 23 cm..

By Vilá Ribas, Carmen..
Barcelona Bosch 1989 .
293 p. 24 cm..
8476980701

By Martínez Vázquez de Castro, Luis..
Madrid : Editorial Civitas 1990 .
216 p. 20 cm..
8473987586

By Navarro Castro, Miguel..
Barcelona José María Bosch 1997 .
320 p. 24 cm..
8476984154