Krishna, B. (1979). Principles of civics: For intermediate classes (16., rev. & enlarged ed.). Kitab Mahal.
Citazione stile Chigago Style (17a edizione)Krishna, Bal. Principles of Civics: For Intermediate Classes. 16., rev. & enlarged ed. Allahabad: Kitab Mahal, 1979.
Citatione MLA (9a ed.)Krishna, Bal. Principles of Civics: For Intermediate Classes. 16., rev. & enlarged ed. Kitab Mahal, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.