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
digitized 2010 HathiTrust Digital Library committed to preserve pda MiAaHDL
Description based on: Volumen I, numero 1 (Noviembre-Diciembre 1964); title from PDF cover (JSTOR, viewed June 15, 2012)
Latest issue consulted: Volumen 21, número 11 = 131 (Noviembre de 1985) (JSTOR, viewed June 15, 2012)