Columbia subject headings:
Casinos--Law and legislation--Nevada.
Casinos--Nevada.
Gamblers--Psychology.
Gambling systems.
Gambling--Nevada.
Harvard subject headings:
Casinos--Law and legislation--Nevada.
Casinos--Nevada.
Gamblers--Psychology.
Gambling systems.
Gambling--Nevada.
Princeton subject headings:
Casinos--Law and legislation--Nevada.
Casinos--Nevada.
Gamblers--Psychology.
Gambling systems.
Gambling--Nevada.