Columbia subject headings:
Causeways--Malaysia--History.
Causeways--Singapore--History.
Johor-Singapore Causeway (Johor Bahru, Johor, Malaysia, and Singapore)--History.
Malaysia--Foreign relations--Singapore.
Singapore--Foreign relations--Malaysia.
Harvard subject headings:
Causeways--Malaysia--History.
Causeways--Singapore--History.
Johor-Singapore Causeway (Johor Bahru, Johor, Malaysia, and Singapore)--History.
Malaysia--Foreign relations--Singapore.
Singapore--Foreign relations--Malaysia.
Princeton subject headings: