TY - BOOK AU - AU - Yang,Zhongjian TI - Preliminary observations on the Pre-Loessic and Post-Pontian formations in western Shansi and northern Shensi, AV - QE294 .A4 ser, A. no. 8 PY - 1930/// CY - Peiping PB - Published by the Geological survey of China (under the Ministry of agriculture and mines and affiliated with the Academia sinica) and the Section of geology of the National academy of Peiping KW - Geology KW - China KW - Geology, Stratigraphic KW - Cenozoic N1 - Last 22 pages in Chinese ER -