Where can I find a magazine on how to use generators?

I looked in the city of Rosewood and couldn't find it, I looked in the library and at the school in another city and couldn't find it.

Does anyone know where the magazine could be located?

I looked in the city of Rosewood and couldn't find it, I looked in the library and at the school in another city and couldn't find it.

Does anyone know where the magazine could be located?