@book{27245,
	author = {Sun, Yün-chu,},
	title = {The upper Cambrian trilobite-faunas of north China,},
	publisher = {Geological Survey of China,},
	year = {1935.},
	address = {Peiping (Peking)},
	note = {Added t.-p. and summary in Chinese. Summary paged with Chinese numerals.}
}