Erikson, E. H. (1980). Identity and the life cycle. W.W. Norton & Company.
Cita Chicago Style (17a ed.)Erikson, Erik H. Identity and the Life Cycle. New York ; London: W.W. Norton & Company, 1980.
Cita MLA (9a ed.)Erikson, Erik H. Identity and the Life Cycle. W.W. Norton & Company, 1980.
Precaución: Estas citas no son 100% exactas.