Attributed, without reference, to Yu, 1975, which appears to be a MS. [details]
Pan (1984) referred the authorship to a manuscript name ["Pan (MS)"], but the name was actually already published ... [details]
Pan (1984) referred the authorship to a manuscript name ["Pan (MS)"], but the name was actually already published ... [details]
Wangjiashan, Jingyuan, Gansu, China [details]
Wangjiashan, Jingyuan, Gansu, China [details]
Wangjiashan, Jingyuan, Gansu, China [details]
Shanshui River in Gouyi, Shaanxi, China [details]
Chijinbao commune, Yumen, Gansu, China [details]
Wangjiashan, Jingyuan, Gansu, China [details]
Chijinbao commune, Yumen, Gansu, China [details]
Chijinbao commune, Yumen, Gansu, China [details]
Chijinbao commune, Yumen, Gansu, China [details]
Chijinbao commune, Yumen, Gansu, China [details]
Chijinbao commune, Yumen, Gansu, China [details]
Wangjiashan, Jingyuan, Gansu, China [details]
Qingquan, Yumen, Gansu, China [details]
Chijinbao commune, Yumen, Gansu, China [details]
Wangjiashan, Jingyuan, Gansu, China [details]
Chijinbao commune, Yumen, Gansu, China [details]