I can across this PDF which is published by the FAO (Food and Agriculture Org of the UN), and find it to be the most comprehensive guide to all aspects of Aquaponics. 288 pgs, and lots of statistical information, graphs, designs, etc. Better than every book I've ever checked out from the library on the subject.
Although no book can be all-inclusive, I highly recommend this guide.
Also, if anyone can suggest something similar, please post here.