توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Barfred, T. (1973). Achilles tendon rupture: Aetiology and pathogenesis of subcutaneous rupture assessed on the basis of the literature and rupture experiments on rats. Munksgaard.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Barfred, Troels. Achilles Tendon Rupture: Aetiology and Pathogenesis of Subcutaneous Rupture Assessed on the Basis of the Literature and Rupture Experiments on Rats. Copenhagen: Munksgaard, 1973.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Barfred, Troels. Achilles Tendon Rupture: Aetiology and Pathogenesis of Subcutaneous Rupture Assessed on the Basis of the Literature and Rupture Experiments on Rats. Munksgaard, 1973.