1 Ma, Chongwei. Lu, Qun. Tujia zu : Hunan Yongshun Xian Shuangfeng Cun diao cha / zhu bian Ma Chongwei, Lu Qun Kunming Shi : 2004 Yunnan da xue chu ban she 6, 8, 8, 432 p., [8] p. of plates : Di 1 ban. 7810687778 Includes bibliographical references (p. 428-429)