MEMORIA, 85-86.
San Salvador, 1986. Paperback. 99p., tables, graphs, wrps, 4to. More
San Salvador, 1986. Paperback. 99p., tables, graphs, wrps, 4to. More
San Salvador, 1987. Paperback. 89p., tables, graphs, wrps, 4to. More
San Salvador, 1987. Paperback. ix, 89p., wrps. Photocopy of a limited distribution document. More