Columbia subject headings:
Harvard subject headings:
China--History--Tang dynasty, 618-907.
Tang Taizong, Emperor of China, 597-649
Princeton subject headings:
China--History--Tang dynasty, 618-907--Addresses, essays, lectures.
China--Kings and rulers--Biography--Addresses, essays, lectures.
Tang Taizong, Emperor of China, 597-649--Addresses, essays, lectures.