Dear Jose
It seems that this issue doesn’t have a month assigned, only a year (2017). It also seems that this journal publiches only one issue per year: Edições Anteriores (for this reason it must not assigned a month to the articles nor issues).
The paper was receveid on October 26th 2016 and it was accepted on Noveber 23th 2016 (you can see it in the bottom of the article, the dates are in Portuguese (RECEBIDO 26-10-2016 · ACEITE 23-11-2016).