Amal Kumar Harh. (2001). Knowing a negative fact: Anupalabdhi. New Bharatiya Book Corporation.
Chicago Style aipamenaAmal Kumar Harh. Knowing a Negative Fact: Anupalabdhi. New Delhi: New Bharatiya Book Corporation, 2001.
MLA aipamenaAmal Kumar Harh. Knowing a Negative Fact: Anupalabdhi. New Bharatiya Book Corporation, 2001.
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