1 "Fișier:The_Wilson_bulletin_(IA_wilsonbulletin26agas).pdf".

Fișier:The Wilson bulletin (IA wilsonbulletin26agas).pdf

used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:The_Wilson_bulletin_(IA_wilsonbulletin26agas).pdf...