Mahler, Margaret S. The psychological birth of the human infant : symbiosis and individuation / Margaret S. Mahler, Fred Pine, Anni Bergman. - New York : Basic Books, [1975] - xii, 308 p. : ill. ; 25 cm. Includes indexes. ISBN: 0465066593 : $15.00 LCCN: 74077255 LC Class. No.: BF723.I6 .M33 1975 / M33 Dewey Class. No.: 155.4/22