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New York: W. W. Norton & Company. As New. 1975. Paperback. 0393007693 .*** FREE UPGRADE to Courier/Priority Shipping Upon Request *** – – *** IN STOCK AND IMMEDIATELY AVAILABLE FOR SHIPMENT - Text block pristine, pages tight to spine - mild cover shelfwear, appears unread. 68 pages. -- with a bonus offer-- .

Sigmund Freud's work exploring the nature of the psyche and the drive theory, extending his previous models to include a new triadic model of the id, ego, and superego.