Crozier, G. (2000). Test your personality. Hodder & Stoughton.
Lua i Stíl Chicago (17ú heag.)Crozier, Gene. Test Your Personality. Abingdon: Hodder & Stoughton, 2000.
Lua MLA (8ú heag.)Crozier, Gene. Test Your Personality. Hodder & Stoughton, 2000.
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