[done] adding a cover to ISBN 9783499208706

[Cat]

The edition with the ISBN 9783499208706 has no cover picture yet so I took a photo of my copy.

https://drive.google.com/drive/folder...

- for legal reasons -
The depicted book is in my posession and I'm the sole owner of this photo and give permission to download & use them as needed.

I hope this is sufficient.
Thank you.

[Martin]

Done.