@database {3020,
	title = {China historical GIS [electronic resource] = Zhongguo li shi di li xin xi xi tongChina historical GIS [electronic resource] = 中国历史地理信息系统},
	year = {In Press},
	note = {editors: Peter K. Bol, Jiangxiong Ge.editors: Peter K. Bol, Jiangxiong Ge.Zhongguo li shi di li xin xi xi tong中国历史地理信息系统Title on the verso of information sheet inserted in container: CHGIS version 1.0 : Qing Dynasty 1820 datasetsTitle on container label: CHGIS version 1.0 : Qing Dynasty datacol. ; 4 3/4 in.System requirements: Windows 9x, 2000, Windows 95/98, Simplified Chinese Windows 98, Traditional Chinese Windows 98, Windows NT4; GIS software: MapInfo4/5/6, ArcView3.1/3.2, ArcGIS8.1.Title from information sheet.CD-ROM Release 1.0 in April 2002.},
	pages = {1 CD-ROM},
	publisher = {CHGIS Harvard Yenching Institute},
	edition = {Version 1.0.},
	address = {Cambridge, MA},
	abstract = {The China Historical Geographic Information System (CHGIS) project is a database of historical administrative units for different periods in Chinese history from 221 BCE to 1911 CE. Free for download from CHGIS.},
	url = {http://www.fas.harvard.edu/~chgis/},
	author = {Bol, Peter K. and Ge Jianxiong 葛剑雄,}
}
