As of today, March 23, 2016, At That Moment can be found on:
Amazon ~ http://amzn.to/1RmaPo6 – in paperback and Kindle format,
and on Smashwords ~ https://www.smashwords.com/books/view/624867 in ebook (epub and others…) format.
In the near future, the ebook will be available on http://nook.barnesandnoble.com/u/nook/379003208 for your Nook, and
on http://www.apple.com/itunes/ in a format for your iPad and iPhone.