APA استشهاد

Nigam, S. (1965). Principles of public administration/4e (4th ed.). Kitab Mahal.

استشهاد بنمط شيكاغو

Nigam, S.R. Principles of Public Administration/4e. 4th ed. Allahabad: Kitab Mahal, 1965.

MLA استشهاد

Nigam, S.R. Principles of Public Administration/4e. 4th ed. Kitab Mahal, 1965.