Columbia subject headings:
Harvard subject headings:
Biographies
China--Foreign relations--Vietnam
Diplomats--Vietnam--Biography.
Nguyẽ̂n, Thuật, 1821-
Vietnam--Foreign relations--China.
Princeton subject headings:
China--Foreign relations--Vietnam.
Diplomats--Vietnam--Biography.
Nguyẽ̂n, Thuật, 1821-
Vietnam--Foreign relations--China.