(2001). Unique quintessence of general studies for UPSC civil service preliminary examination 2001. Unique Publishers.
शिकागो स्टाइल उद्धरणUnique Quintessence of General Studies for UPSC Civil Service Preliminary Examination 2001. New Delhi: Unique Publishers, 2001.
एमएलए उद्धरणUnique Quintessence of General Studies for UPSC Civil Service Preliminary Examination 2001. Unique Publishers, 2001.
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