There's an excellent book called Angle of Attack by Mike Gray that follows North American's development of their part of Apollo, as well as touching on the imme

There's an excellent book called Angle of Attack by Mike Gray that follows North American's development of their part of Apollo, as well as touching on the immense efforts of all the other contractors in the program. It's not too long a book and reads like an adventure story despite being nonfiction, which I think just speaks to the kind of cowboy mentality that went into building a moon rocket in such a short time. Also neat because the other big players are companies like Lockheed, Northrop, Martin, McDonnell, Grumman, and Douglass -- all before their eventual mergers!