This work was first published on the Libya and is now in the public domain because its copyright protection has expired by virtue of the Copyright Protection Law, enacted 1968. The work meets one of the following criteria:
It is an anonymous work or pseudonymous work and 25 years have passed since the date of its publication
It is a work published after the death of the author and 50 have passed since the year of death of the author (or last-surviving author)
It is a photographic or cinematographic work that is not compositive (artistic in nature) and 5 years have elapsed since the end of the year of its publication
It is a work created by a legal public or private entity and 30 years have passed since the year the work was created
It is another type of work and than 25 years have elapsed since the the year of death of the author (or last-surviving author) and fifty years have elapsed since the year of publication.
It is one of "official documents such as texts of laws, decrees, regulations, international agreements, legal judgements and various official documents"
Upoštevajte, da v državah, ki ne uporabljajo pravila krajšega trajanja in v katerih traja avtorskopravno varstvo dlje kot za življenja avtorja in še 60 let, to delo morda ni v javni domeni. Konkretno traja varstvo v Mehiki še 100 let, na Jamajki še 95 let, v Kolumbiji še 80 let, v Gvatemali in na Samoi še 75 let ter v Švici in Združenih državah Amerike še 70 let.
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