Guia de Archivos:

Mexico: Instituto de Investigaciones Sociales, 1972. Primera ed. Yellow octavo; 185 p; 23 cm. Very gentle wear & tear to spine foot folds & head folds, barely rubbed corners & edges, light pencil mark to bottom edge, several faint fade marks to covers, else very good. Paperback.

In Spanish. Only 2,000 copies. Uncommon. Federal records; Official.