Singh, A. K. (2008). Science and technology for civil services examinations. Tata Mc-Graw Hill.
Stile di citazione ChicagoSingh, Ashok Kumar. Science and Technology for Civil Services Examinations. New Delhi: Tata Mc-Graw Hill, 2008.
Citazione MLASingh, Ashok Kumar. Science and Technology for Civil Services Examinations. Tata Mc-Graw Hill, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.