Sex Ratio at Birth Male recorded births/Female recorded births July 1989--June 1990

Chicago citation style
G. William Skinner; Chessy Q. Si. Sex Ratio at Birth Male recorded births/Female recorded births July 1989--June 1990. 1989-1990. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/1257. (Accessed October 18, 2018.)
APA citation style
G. William Skinner; Chessy Q. Si, (1989-1990) Sex Ratio at Birth Male recorded births/Female recorded births July 1989--June 1990. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/1257
MLA citation style
G. William Skinner; Chessy Q. Si. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/skinner/id/1257>.
Note: These citations are programmatically generated and may be incomplete.