Columbia subject headings:
China--Foreign relations--Southeast Asia.
Southeast Asia--Foreign relations--China.
Wei, Yuan, 1794-1857. Hai guo tu zhi.
Harvard subject headings:
China--Foreign relations--Southeast Asia.
Southeast Asia--Foreign relations--China.
Wei, Yuan, 1794-1857. Hai guo tu zhi.
Princeton subject headings:
China--Foreign relations--Southeast Asia.
Southeast Asia--Foreign relations--China.
Wei, Yuan, 1794-1857. Hai guo tu zhi.