Hu, John Y. H. Tsʻao Yü by John Y. H. Hu. - New York Twayne Publishers [1972] - 167 p. - Twayne's world authors series China TWAS 201. . 920421 Bibliography: p. 161-164. LCCN: 70152015 //r84 Subjects--Personal Names: Tsʻao, Yü. LC Class. No.: PL2815.A8 / Z67 Dewey Class. No.: 895.1/2/5