Do I need to include a copyright sign © in Argentina in order to protect my work?

In Argentina, as in Europe, it is not required to include a copyright sign to protect your work.

However, whether the work is registered or not, it is advisable to include a copyright notice such as ‘all rights reserved’ along with the copyright sign ‘©’, followed by the name of the author and the year of the first publication. This will allow third parties to know that your work is protected and that it should not be copied without authorisation.