Challoner, J., & Gavira Guerrero, A. (2019). How technology works (First American edition.). DK Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChalloner, Jack, और Angeles Gavira Guerrero. How Technology Works. First American edition. New York, New York: DK Publishing, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रChalloner, Jack, और Angeles Gavira Guerrero. How Technology Works. First American edition. DK Publishing, 2019.
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