A first book in psychology,
by Mary Whiton Calkins.

APA Citation

Calkins, M. Whiton. (1919). A first book in psychology. 4th rev. ed. New York: Macmillan.

MLA Citation

Calkins, Mary Whiton, 1863-1930. A First Book In Psychology. 4th rev. ed. New York: Macmillan, 1919.

Warning: These citations may not always be complete (especially for serials).