Seligman, Martin E. P. Authentic happiness : using the new positive psychology to realize your potential for lasting fulfillment / Martin E.P. Seligman. - New York : Free Press, 2002. - xiv, 321 p. ; 24 cm. Includes bibliographical references and index. ISBN: 0743222970 Subjects--Topical Terms: Positive psychology.Psicología Positiva LC Class. No.: BF 575 / S465a 2002 Dewey Class. No.: 158