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 Portuguese; abstracts in English and the language of the text.
Description based on: No. 49 (2002); title from HTML header (publisher’s Web site, viewed Mar. 19, 2014).