Unfortunately there isn't an all encompassing book like Jan Still Axis Pistols that I can recommend, and even that is 30 years out of print. There are many books out there for specific genres, but many are out of print. Here's a good start of a list:
Unique Pistols by Robert Adair
FN Browning Pistols by Anthony Vanderlinden
The Mauser HSc Pistol by Alan D Burnham and Peter Theodore
JP Sauer and Sohn by Jim Crate and Nico Van Gijn
Know your Czech Pistols by R J Berger
Beretta Modelle 1934 by Adriano Simoni
Kongsberg Colten by Karl Hanevik (not in English I believe)
The Radom Vis Pistol by Robert J Berger
Astra Automatic Pistols by Len Antaris
I know there are a few books by Dieter H Marshall and Per Mathisen individually on Walther PP / PPk. I am not sure which one is better as I do not own either.
I am unfamiliar with a good book on the Femaru's.
There's quite a few Luger books, someone else might have recommendations.
Hope this helps!