Singh, S. (2010). Geography: For the UPSC Civil Services preliminary examination (3rd ed.). TMH.
Stile di citazione ChicagoSingh, Surender. Geography: For the UPSC Civil Services Preliminary Examination. 3rd ed. New Delhi: TMH, 2010.
Citazione MLASingh, Surender. Geography: For the UPSC Civil Services Preliminary Examination. 3rd ed. TMH, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.