In my country there is a national library. They have to store in thir vault/archive every publication that was published in that country. I think that the name

In my country there is a national library. They have to store in thir vault/archive every publication that was published in that country. I think that the name of this is "Mandatory law". https://stuff.coffeecode.net/www.loc.gov/law/help/deposit-laws/index.php https://stuff.coffeecode.net/www.loc.gov/law/help/deposit-la...