Bugental, J. F. (1976). The search for existential identity. Jossey - Bass.
Lua i Stíl Chicago (17ú heag.)Bugental, James F.T. The Search for Existential Identity. San francisco: Jossey - Bass, 1976.
Lua MLA (9ú heag.)Bugental, James F.T. The Search for Existential Identity. Jossey - Bass, 1976.
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