Dittmar, H. (1992). The social psychology of material possessions: To have is to be. Harvester Wheatsheaf.
Lua i Stíl Chicago (17ú heag.)Dittmar, Helga. The Social Psychology of Material Possessions: To Have Is to Be. Hemel Hempstead, Hertfordshire: Harvester Wheatsheaf, 1992.
Lua MLA (9ú heag.)Dittmar, Helga. The Social Psychology of Material Possessions: To Have Is to Be. Harvester Wheatsheaf, 1992.
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