Columbia subject headings:
Drug legalization--Arizona.
Drug legalization--California.
Marijuana--Law and legislation--Arizona.
Marijuana--Law and legislation--California.
Marijuana--Therapeutic use--Arizona.
Marijuana--Therapeutic use--California.
Harvard subject headings:
Drug legalization--Arizona.
Drug legalization--California.
Marijuana--Law and legislation--Arizona.
Marijuana--Law and legislation--California.
Marijuana--Therapeutic use--Arizona.
Marijuana--Therapeutic use--California.
Princeton subject headings:
Drug legalization--Arizona.
Drug legalization--California.
Marijuana--Law and legislation--Arizona.
Marijuana--Law and legislation--California.
Marijuana--Therapeutic use--Arizona.
Marijuana--Therapeutic use--California.