Krishnakumar. (2004). Pracheen bharata ka bhaugolika parivesha. Mayank prakashan.
シカゴスタイル引用形Krishnakumar. Pracheen Bharata Ka Bhaugolika Parivesha. Jwalapur: Mayank prakashan, 2004.
MLA引用形式Krishnakumar. Pracheen Bharata Ka Bhaugolika Parivesha. Mayank prakashan, 2004.
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