توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Nikhat, P. (2016). Ecology of the united provinces of Agra and Awadh: 1858-1947. Centre of Advanced Study, Department of History, Aligarh Muslim University.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Nikhat, Perween. Ecology of the United Provinces of Agra and Awadh: 1858-1947. Aligarh, India: Centre of Advanced Study, Department of History, Aligarh Muslim University, 2016.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Nikhat, Perween. Ecology of the United Provinces of Agra and Awadh: 1858-1947. Centre of Advanced Study, Department of History, Aligarh Muslim University, 2016.