APA (7 वां संस्करण) प्रशस्ति पत्र
Tollefsen, C. (2008). Artificial Nutrition and Hydration: The New Catholic Debate. Springer Netherlands. https://doi.org/10.1007/978-1-4020-6207-0
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Tollefsen, Christopher. Artificial Nutrition and Hydration: The New Catholic Debate. Dordrecht: Springer Netherlands, 2008. https://doi.org/10.1007/978-1-4020-6207-0.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Tollefsen, Christopher. Artificial Nutrition and Hydration: The New Catholic Debate. Springer Netherlands, 2008. https://doi.org/10.1007/978-1-4020-6207-0.
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