APA (7th ed.) Citation

Day, H. N. (1877). Elements of psychology. G.P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Day, Henry Noble. Elements of Psychology. New York: G.P. Putnam's Sons, 1877.

MLA (9th ed.) Citation

Day, Henry Noble. Elements of Psychology. G.P. Putnam's Sons, 1877.