Rajaram Kalpana. (2013). Spectrum's Handbook for General Studies (UPSC Civil Services Preliminary Examination) Paper 1. New Delhi.
シカゴスタイル引用形Rajaram Kalpana. Spectrum's Handbook for General Studies (UPSC Civil Services Preliminary Examination) Paper 1. New Delhi, 2013.
MLA引用形式Rajaram Kalpana. Spectrum's Handbook for General Studies (UPSC Civil Services Preliminary Examination) Paper 1. New Delhi, 2013.
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