APA (7 वां संस्करण) प्रशस्ति पत्र
Hull, R. N., Barbu, C., & Goncharova, N. (2007). Strategies to Enhance Environmental Security in Transition Countries. Springer Netherlands. https://doi.org/10.1007/978-1-4020-5996-4
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hull, Ruth N., Constantin-Horia Barbu, और Nadezhda Goncharova. Strategies to Enhance Environmental Security in Transition Countries. Dordrecht: Springer Netherlands, 2007. https://doi.org/10.1007/978-1-4020-5996-4.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hull, Ruth N., et al. Strategies to Enhance Environmental Security in Transition Countries. Springer Netherlands, 2007. https://doi.org/10.1007/978-1-4020-5996-4.
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