Khan, A. R. e. (2010). Objective general studies: For UPSC civil services preliminary examination. Tata Mc Graw Hill Education.
Stile di citazione ChicagoKhan, A R; ed. Objective General Studies: For UPSC Civil Services Preliminary Examination. New Delhi: Tata Mc Graw Hill Education, 2010.
Citazione MLAKhan, A R; ed. Objective General Studies: For UPSC Civil Services Preliminary Examination. Tata Mc Graw Hill Education, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.