توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Ahmad, K. (2018). Railway construction in Rajasthan and its impact till 1914 A.D. Centre of Advanced Study, Department of History, Aligarh Muslim University.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Ahmad, Khalid. Railway Construction in Rajasthan and Its Impact Till 1914 A.D. Aligarh, India: Centre of Advanced Study, Department of History, Aligarh Muslim University, 2018.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Ahmad, Khalid. Railway Construction in Rajasthan and Its Impact Till 1914 A.D. Centre of Advanced Study, Department of History, Aligarh Muslim University, 2018.