Dual evolution, being outlines in a theory which is thought to reconcile idealism and realism from the viewpoint of humanism

Chicago citation style
O'Callaghan, J. Dual evolution, being outlines in a theory which is thought to reconcile idealism and realism from the viewpoint of humanism. 1921. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/006569592. (Accessed November 20, 2018.)
APA citation style
O'Callaghan, J, (1921) Dual evolution, being outlines in a theory which is thought to reconcile idealism and realism from the viewpoint of humanism. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/006569592
MLA citation style
O'Callaghan, J. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/006569592>.
Note: These citations are programmatically generated and may be incomplete.