Walters, E. (2018). From the heart of Africa: A book of wisdom. Tundra Books, an imprint of Penguin Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWalters, Eric. From the Heart of Africa: A Book of Wisdom. Toronto: Tundra Books, an imprint of Penguin Random House, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWalters, Eric. From the Heart of Africa: A Book of Wisdom. Tundra Books, an imprint of Penguin Random House, 2018.
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