Thanks to Steven E., an Amazon commenter on the paperback book[1], now the hardcover is available under ISBN 978-0-692-59943-3. As of this writing, there is just one Google hit but the following site (no affiliation) finds it at several stores:
<a rel="nofollow" href="http://www.bookfinder4u.com/IsbnSearch.aspx?isbn=9780692599433&mode=direct"><span class="forcewrap">http://</span><span class="forcewrap">www.bookfi&lt;/span&gt;&lt;span class="forcewrap">nder4u.com/</span><span class="forcewrap">IsbnSearch.</span><span class="forcewrap">aspx?isbn=</span><span class="forcewrap">9780692599433&</span><span class="forcewrap">mode=direct</span></a>
However, IngramSpark has notified me that "December is turning out to be a record-shattering month for hard cover production", so you may have to wait for shipment.
Ali
P.S. "Programming in D": The book that keeps on announcing. :p (I am tired of it myself and hopefully this is the last one.)
P.P.S. Main page: <a rel="nofollow" href="http://ddili.org/ders/d.en/">http://ddili.org/ders/d.en/</a>
[1] <a rel="nofollow" href="http://www.amazon.com/Programming-Tutorial-Reference-Ali-Cehreli/dp/1515074609/ref=sr_1_1?ie=UTF8&qid=1450467388&sr=8-1&keywords=%22programming+in+d%22"><span class="forcewrap">http://</span><span class="forcewrap">www.ama&lt;/span&gt;&lt;span class="forcewrap">zon.com/</span><span class="forcewrap">Programming-</span><span class="forcewrap">Tutorial-</span><span class="forcewrap">Reference-</span><span class="forcewrap">Ali-Cehreli/</span><span class="forcewrap">dp/1515074609/</span><span class="forcewrap">ref=sr_1_1?ie=</span><span class="forcewrap">UTF8&</span><span class="forcewrap">qid=145</span><span class="forcewrap">0467388&</span><span class="forcewrap">sr=8-1&</span><span class="forcewrap">keywords=</span><span class="forcewrap">%22prog</span><span class="forcewrap">ramming+</span><span class="forcewrap">in+d%22</span></a>