Columbia subject headings:
Harvard subject headings:
Group identity--East Asia.
Harbors--Social aspects--East Asia.
Port cities--Social aspects--East Asia.
Regionalism--East Asia
Social interaction--East Asia.
Social networks--East Asia.
Princeton subject headings:
Harbors--Social aspects--East Asia.
Intercultural communication--East Asia.
Port cities--Social aspects--East Asia.
Social networks--East Asia.