India. Directorate General of Technical Development. Directorate of Public Relations and Publications. Hand book of industrial data. Controller of Publications.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)India. Directorate General of Technical Development. Directorate of Public Relations and Publications. Hand Book of Industrial Data. New Delhi: Controller of Publications.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)India. Directorate General of Technical Development. Directorate of Public Relations and Publications. Hand Book of Industrial Data. Controller of Publications.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.