Columbia subject headings:
Lawrence Livermore National Laboratory--Security measures.
Nuclear energy--Research--Laboratories--Security measures--United States.
Nuclear weapons information--United States.
Harvard subject headings:
Lawrence Livermore National Laboratory--Security measures.
Nuclear energy--Research--Laboratories--Security measures--United States.
Nuclear weapons information--United States.
Princeton subject headings:
Lawrence Livermore National Laboratory--Security measures.
Nuclear energy--Research--Laboratories--Security measures--United States.
Nuclear weapons information--United States.