Sandler, J., & Sandler, A. (1998). Internal objects revisited. Karnac.
Lua i Stíl Chicago (17ú heag.)Sandler, Joseph, agus Anne-Marie Sandler. Internal Objects Revisited. London: Karnac, 1998.
Lua MLA (9ú heag.)Sandler, Joseph, agus Anne-Marie Sandler. Internal Objects Revisited. Karnac, 1998.
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