CALLAHAN, M. T. (1996). Architect And Engineer Liability Claims Against Design Professionals Second Edition Michael T. Callahan. Wiley law Publication.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)CALLAHAN, Michael T. Architect And Engineer Liability Claims Against Design Professionals Second Edition Michael T. Callahan. Wiley law Publication, 1996.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)CALLAHAN, Michael T. Architect And Engineer Liability Claims Against Design Professionals Second Edition Michael T. Callahan. Wiley law Publication, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.