Creative Commons Attribution-Share Alike 4.0 truetrue English A piece of raw Baltic amber. author name string: W.carter Wikimedia username: W.carter URL:...
be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work...
is a file format created by Adobe Systems for document exchange. PDF is used for representing two-dimensional documents in a manner independent of the...
