URL: https://www.flickr.com/people/93558439@N05/ publication date: 23 May 2014 described at URL: https://www.flickr.com/photos/93558439@N05/14065226768/
DescriptionL'astronomo Giuseppe Piazzi.djvu Italiano: Notizie biografiche Date 25 May 2014, 12:52:37 Source Internet Archive identifier: https://archive
URL: https://www.flickr.com/people/93558439@N05/ publication date: 23 May 2014 operator: Flickr described at URL: https://www.flickr.com/photos/93558439@N05/14251888575