Lian, A. (1981). The psychological study of object perception: Examination of methodological problems and a critique of main research approaches. Academic Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lian, Arild. The Psychological Study of Object Perception: Examination of Methodological Problems and a Critique of Main Research Approaches. London ; New York: Academic Press, 1981.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lian, Arild. The Psychological Study of Object Perception: Examination of Methodological Problems and a Critique of Main Research Approaches. Academic Press, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.