R2 A 2074G provisional Core-periphery zones

Chicago citation style
G. William Skinner; Michelle Gagnon. R2 A 2074G provisional Core-periphery zones. 1990-2000. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/755. (Accessed July 20, 2018.)
APA citation style
G. William Skinner; Michelle Gagnon, (1990-2000) R2 A 2074G provisional Core-periphery zones. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/755
MLA citation style
G. William Skinner; Michelle Gagnon. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/755>.
Note: These citations are programmatically generated and may be incomplete.