Why the universe? or, Cosmopoietic space

Chicago citation style
Campbell, Percy Alfonso, 1877-. Why the universe? or, Cosmopoietic space. 1943. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/006569648. (Accessed November 21, 2018.)
APA citation style
Campbell, Percy Alfonso, 1877-, (1943) Why the universe? or, Cosmopoietic space. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/006569648
MLA citation style
Campbell, Percy Alfonso, 1877-. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/006569648>.
Note: These citations are programmatically generated and may be incomplete.