China Region 2.3, Northeast Quadrant X971F Regional Systems Index

Chicago citation style
G. William Skinner; Shumin Liang. China Region 2.3, Northeast Quadrant X971F Regional Systems Index. unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/869. (Accessed October 23, 2018.)
APA citation style
G. William Skinner; Shumin Liang, (unknown) China Region 2.3, Northeast Quadrant X971F Regional Systems Index. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/869
MLA citation style
G. William Skinner; Shumin Liang. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/869>.
Note: These citations are programmatically generated and may be incomplete.