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 MiAaHDL
In Spanish; some abstracts in English, French and Spanish
digitized 2010 HathiTrust Digital Library committed to preserve pda MiAaHDL
Vol. 1, núm. 1 (enero de 1990); title from PDF cover (publisher's Web site, viewed July 28, 2015)