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 Portuguese and English; abstracts in both languages.
Description based on: Vol. 15, no. 1-2 (1967); title from HTML header (publisher’s website, viewed Feb. 25, 2019).