PERRY, R. H. (1976). Engineering Manual A. Practical Reference Of Design Methods And Data Building System, Chemical, Civil, Electrical, Mechanical And Enviromental Engineering And Enegy Conversion Robert H. Perry. McGraw-Hill.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)PERRY, Robert H. Engineering Manual A. Practical Reference Of Design Methods And Data Building System, Chemical, Civil, Electrical, Mechanical And Enviromental Engineering And Enegy Conversion Robert H. Perry. McGraw-Hill, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)PERRY, Robert H. Engineering Manual A. Practical Reference Of Design Methods And Data Building System, Chemical, Civil, Electrical, Mechanical And Enviromental Engineering And Enegy Conversion Robert H. Perry. McGraw-Hill, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.