Roberts, R. (2022). Wild problems: A guide to the decisions that define us (First edition.). Portfolio / Penguin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoberts, Russ. Wild Problems: A Guide to the Decisions That Define Us. First edition. [New York, NY]: Portfolio / Penguin, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoberts, Russ. Wild Problems: A Guide to the Decisions That Define Us. First edition. Portfolio / Penguin, 2022.
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