توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)
WILLEMSEN-SWINKELS, S., & ET AL. CHILDREN WITH A PERVASIVE DEVELOPMENTAL DISORDER, CHILDREN WITH A LANGUAGE DISORDER AND NORMALLY DEVELOPING CHILDREN IN SITUATIONS WITH HIGHAND LOW-LEVEL INVOLVEMENT OF THE CAREGIVER.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)
WILLEMSEN-SWINKELS, S.H.N, و ET AL. CHILDREN WITH A PERVASIVE DEVELOPMENTAL DISORDER, CHILDREN WITH A LANGUAGE DISORDER AND NORMALLY DEVELOPING CHILDREN IN SITUATIONS WITH HIGHAND LOW-LEVEL INVOLVEMENT OF THE CAREGIVER.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)
WILLEMSEN-SWINKELS, S.H.N, و ET AL. CHILDREN WITH A PERVASIVE DEVELOPMENTAL DISORDER, CHILDREN WITH A LANGUAGE DISORDER AND NORMALLY DEVELOPING CHILDREN IN SITUATIONS WITH HIGHAND LOW-LEVEL INVOLVEMENT OF THE CAREGIVER.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.