That is the RSS feed to add to your podcast player.
You have to add the link manually because it isnt listed publicly to show up in a search
I use Overcast to listen because it has Smart Speed and saves you about 30% more time by shortening silent portions of the audio. And because it works with audiobook format (.m4b), and works with chapters.
Crazy Busy: A (Mercifully) Short Book About a (Really) Big Problem (Unabridged)