File:Pr,59.jpgThis image was copied from en.wikipedia.org. The original description was: English: Praseodymium sample. Slovenščina: Prazeodim v epruveti. Photo by RTC
File:Dark-dorkings.jpg"Our Birds" |Source = http://www.classicnatureprints.com/pr.Weir%20Poultry/weir.red.dorkings.jpg |Date = 1902 |Author = [[Harriso English determination