Cita APA (7th ed.)
Keirsey, D., & Bates, M. (1984). Please understand me II: Character & temperament types. Prometheus Nemesis bk. Co..
Cita Chicago (17th ed.)
Keirsey, David, i Marilyn Bates. Please Understand Me II: Character & Temperament Types. Del Mar: Prometheus Nemesis bk. Co., 1984.
Cita MLA (9th ed.)
Keirsey, David, i Marilyn Bates. Please Understand Me II: Character & Temperament Types. Prometheus Nemesis bk. Co., 1984.
Atenció: Aquestes cites poden no estar 100% correctes.