Preservation of learning = [Cun xue bian] : with an introduction on his life and thought /
Yen Yüan ; translated by Mansfield Freeman.
- Los Angeles : Monumenta Serica at the University of California, 1972.
- v, 215 p. ; 27 cm.
- Monumenta serica monograph ; 16 .
- Monumenta serica monograph series ; 16. .
Parallel title in Chinese characters. Includes index.