Population : challenging world crisis /

Chicago citation style
Population : challenging world crisis /. 1969?]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/002558902. (Accessed December 10, 2018.)
APA citation style
(1969?]) Population : challenging world crisis /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/002558902
MLA citation style
Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/002558902>.
Note: These citations are programmatically generated and may be incomplete.