APA (7 वां संस्करण) प्रशस्ति पत्र

Day, N., & Hooper, H. (2026). How to have a thought: A walk with Charles Darwin (First edition.). Neal Porter Books/Holiday House.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Day, Nicholas, और Hadley Hooper. How to Have a Thought: A Walk with Charles Darwin. First edition. New York: Neal Porter Books/Holiday House, 2026.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Day, Nicholas, और Hadley Hooper. How to Have a Thought: A Walk with Charles Darwin. First edition. Neal Porter Books/Holiday House, 2026.

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