Espinosa C., E. (1988). Orthodoxy and heresy in Hans Kung: An analysis and critique of his criteria and norms of Christian truth and error. Andrews University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Espinosa C., Enrique. Orthodoxy and Heresy in Hans Kung: An Analysis and Critique of His Criteria and Norms of Christian Truth and Error. Andrews University, 1988.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Espinosa C., Enrique. Orthodoxy and Heresy in Hans Kung: An Analysis and Critique of His Criteria and Norms of Christian Truth and Error. Andrews University, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.