Plik:PL Gould - Gwiazda przewodnia.djvu

Ten plik jest własnością publiczną w kraju pochodzenia oraz w państwach i na obszarach, gdzie prawo autorskie wygasa 80 lat po śmierci autora.

You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 80 years: Mexico has 100 years, Jamaica has 95 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years, but it does implement the rule of the shorter term.