Me bad! I was thinking of: "Electric Motor Repair: A Practical Book on the Winding, Repair, and Troubleshooting of A-C and D-C Motors and Controllers" by Robert Rosenberg, not Rosenthal.
Half.com has one of the older editions, which is perfectly fine for our situations, for just under $50, and the revised edition, with Hand as the second-named author, for just under $185.
This is an expensive book, in any edition, but it is the only one I know of which goes into every detail.
It is also unique in that it is spiral bound, with a left half which folds out to reveal the schematics, and a right half which folds out to reveal the supporting text.
Richardson's book, particularly the earlier editions, discuss RPCs in reasonably good detail. The later editions do not discuss RPCs at all.
The relevant pages of Richardson's book was uploaded to this site, somewhere.
Habermann's IEEE paper, too.