OK...this looks to be what you might want. The early eras (from WWI to 1950 are a bit scarce on the pics-- but if the Korean War onward to now is your thing, then this one's for you....well-- except for the most modern of weapons like MOAB-- the book was published in 1988-- but it does have all the many different countries and great color pics of the bombs, rockets, missiles, etc.
Author: Bill Gunston
Title: The Illustrated Encyclopedia of Aircraft Armament: A Comprehensive Guide to Modern Airborne Weapons and Sensing Systems, Their Operating Principles, and Tactical Deployment.
(wow-- thats quite a title...)
ISBN: 0-517-56607-9
While I wouldn't stake my life on his written data (I have seen many times before where Mr. Gunston screwed up WWII data)-- if it's pics you want-- this has 'em. And the planes that carried them :)