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
Publisher’s WWW site also includes issues under the journal’s earlier titles.
Description based on print version record.
Description based on: No. 51 (julio-agosto-septiembre 1989); title from PDF title page (publisher’s Web site viewed May 6, 2015).