Proof Map for the Higher-order Systems with City Labels (Southern China Proper)

Chicago citation style
G. William Skinner; Xue Liu. Proof Map for the Higher-order Systems with City Labels (Southern China Proper). 1990-2000. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/893. (Accessed June 21, 2018.)
APA citation style
G. William Skinner; Xue Liu, (1990-2000) Proof Map for the Higher-order Systems with City Labels (Southern China Proper). Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/893
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/893>.
Note: These citations are programmatically generated and may be incomplete.