Knauthe, h. E. (1967). Credit Planning and state Supervision Function of Banks in the GDR. The Institute of National Planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Knauthe, habil Erhart. Credit Planning and State Supervision Function of Banks in the GDR. Cairo: The Institute of National Planning, 1967.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Knauthe, habil Erhart. Credit Planning and State Supervision Function of Banks in the GDR. The Institute of National Planning, 1967.