top of my list is still Bruce Clayton's old 1980 book.
he states that being ready for the absolute worse-case scenario of a global nuclear conflict, one is then prepared for lesser disasters.
https://www.amazon.com/Life-After-Doomsday-Survivalist-Disasters/dp/B000EI4M5Whttps://www.amazon.com/Life-After-Doomsday-Bruce-Clayton/dp/0873641752