Mexico D.F. Editorial Extemporaneos, 1974. Paperback. 118p., newsprint with b&w photography and news reports in facsimile throughout a double-column running text. Huge paperbound in 13x8.5 inch decorated wraps, the third edition (same year as first issue). A little edgeworn with a quarter-inch tear at the head of spine panel, cover and contents toned but remain handleable, a good copy. documentos extemporaneos 1.