@book{26818,
	author = {Teilhard de Chardin, Pierre. and Yang, Zhongjian,},
	title = {Preliminary observations on the Pre-Loessic and Post-Pontian formations in western Shansi and northern Shensi,},
	publisher = {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,},
	year = {1930.},
	address = {Peiping,},
	note = {Last 22 pages in Chinese.}
}