Mohave Outpost - Mohave Outpost Barracks

You’ll find this guy behind the bar in the first room. It’s in a cupboard built into the bar counter facing the door, near the floor.

Nellis Air Force Base - Pearl’s Barracks

In the room with two couches you’ll find a bookshelf along the wall to the south, south-east. The book is standing between a bunch of Pre-War Books. Note that this is also the shelf with some 40mm Grenades and a Grenade Rifle on it.

Ranger Station Foxtrot

This book is in the tent, on the table next to the radio.

Sloan - Worker Barracks

On the metal locker to the left (the unlocked one), on a shelf near some ruined Pre-War Books.

[Lonesome Road] Collapsed Overpass Tunnel

From the exit to The High Road head south until you find a sandbag barrier, behind which is a small camp. In a metal box you’ll find a Teddy Bear, underneath which is this book.