Shiv Prasad Singh. (1990). Aadhunik parivesh aur navlekhan. Sanjay.
シカゴスタイル引用形Shiv Prasad Singh. Aadhunik Parivesh Aur Navlekhan. Varanasi: Sanjay, 1990.
MLA引用形式Shiv Prasad Singh. Aadhunik Parivesh Aur Navlekhan. Sanjay, 1990.
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