Nobi CoreGWS: Nobi Core 1:62,500 18 July 00 Roads, Rivers, Settlements, Contours

Chicago citation style
G. William Skinner; Xue Liu. Nobi Core,GWS: Nobi Core 1:62,500 18 July 00 Roads, Rivers, Settlements, Contours. unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/1240. (Accessed July 18, 2018.)
APA citation style
G. William Skinner; Xue Liu, (unknown) Nobi Core,GWS: Nobi Core 1:62,500 18 July 00 Roads, Rivers, Settlements, Contours. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/1240
MLA citation style
G. William Skinner; Xue Liu. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/1240>.
Note: These citations are programmatically generated and may be incomplete.