Keirsey, David. Please understand me : character & temperament types / David Keirsey, Marilyn Bates. - 5th ed. - Del Mar, CA : Distributed by Prometheus Nemesis Book Co., c1984. - 210 p. : ill. ; 22 cm. Includes bibliographical references (p. 209-210). ISBN: 0960695400 (pbk.) LCCN: 00694528 Subjects--Topical Terms: Typology (Psychology)Temperament. LC Class. No.: BF698.3 / .K45 1984