American Psychological Association & MacLeod, R. B. (1969). William James: Unfinished business. American Psychological Association.
Cita Chicago (17th ed.)American Psychological Association i Robert Brodie MacLeod. William James: Unfinished Business. Washington: American Psychological Association, 1969.
Cita MLA (9th ed.)American Psychological Association i Robert Brodie MacLeod. William James: Unfinished Business. American Psychological Association, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.