In Anchorage Memorial Facility, in the infirmary on the west side, in an Average-locked floor safe under a table on the north wall of the room. If the access codes were used to unlock the terminal near the Nuka-Cola Vending Machine, the safe can be remotely unlocked.
Enter through the front, going to the room straight ahead with a giant teddy bear on a tricycle suspended in the air. Jump on the barrels to the left of a machine to get on top, there is a toolbox with the book next to it.
In the raider hideout (in the tunnels behind sandbags). Enter the hideout, turn left, and enter the small room on the left. The book will be on the right corner behind the toolbox (near the generator).
In a small sewer area marked as 'Sewer Entrance' (not the sewer down in the crater) on the local map in Vernon Square (at the end alley to the right of the Cinema, opposite the Statesman Hotel). The book is on a table behind an Average locked door, along with a sawed-off shotgun.