Estes, F., & Rafferty, K. (2022). Teen innovators: Nine young people engineering a better world with creative inventions. Zest Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEstes, Fred, और Kavel Rafferty. Teen Innovators: Nine Young People Engineering a Better World with Creative Inventions. Minneapolis: Zest Books, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEstes, Fred, और Kavel Rafferty. Teen Innovators: Nine Young People Engineering a Better World with Creative Inventions. Zest Books, 2022.
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