(2003). Book of abstracts: 24th International Conference [on] Stress and Anxiety, 10-12th July 2003, Lisbon - Portugal. Psychology Department, Universidade Lusofona de Humanidades e Technologias.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Book of Abstracts: 24th International Conference [on] Stress and Anxiety, 10-12th July 2003, Lisbon - Portugal. Lisbon: Psychology Department, Universidade Lusofona de Humanidades e Technologias, 2003.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Book of Abstracts: 24th International Conference [on] Stress and Anxiety, 10-12th July 2003, Lisbon - Portugal. Psychology Department, Universidade Lusofona de Humanidades e Technologias, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.