@inbook{10.2307/j.ctt13x1dg2.3,
 URL = {http://www.jstor.org/stable/j.ctt13x1dg2.3},
 bookauthor = {Paul Heng-chao Ch’en and Paul Heng-chao Ch’en},
 booktitle = {Chinese Legal Tradition Under the Mongols: The Code of 1291 as Reconstructed},
 pages = {vii--x},
 publisher = {Princeton University Press},
 title = {PREFACE},
 year = {1979}
}