TY - BOOK AU - Robinson, David M. TI - Empire's twilight: northeast Asia under the Mongols T2 - Harvard-Yenching Institute monograph series SN - 9780674036086 (cl : alk. paper) U1 - 950.24 22 PY - 2009/// CY - Cambridge, Mass. PB - Harvard University Asia Center for the Harvard-Yenching Institute, Distributed by Harvard University Press KW - Mongols KW - East Asia KW - History KW - 14th century N1 - Includes bibliographical references and index ER -