Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2010.
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212
In Spanish; some issues have abstracts in English and Spanish.
Description based on: Volumen 1 (1986); title from HTML header (publisher’s Web site, viewed Nov. 15, 2016).