The retention and constant enlargement of the public domain.
The cover image has been fabricated and is placed in the public domain.
Cover created by Transcriber and placed into the Public Domain.
This cover for mobile versions is placed in the public domain.
This image is placed in the public domain and may be freely used.
The image of the cover was created for this e-book and is granted to the public domain.
I believe that the great majority of copyrights should fall into the public domain at a definite and easily ascertainable time.
The cover has been made for this e-book, and is placed in the public domain.
E-cover created by transcriber and placed into the Public Domain.
Text on cover added by transcriber and placed in the Public Domain.