American Psychological Association & MacLeod, R. B. (1969). William James: Unfinished business. American Psychological Association.
Citazione stile Chigago Style (17a edizione)American Psychological Association e Robert Brodie MacLeod. William James: Unfinished Business. Washington: American Psychological Association, 1969.
Citatione MLA (9a ed.)American Psychological Association e Robert Brodie MacLeod. William James: Unfinished Business. American Psychological Association, 1969.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.