Agrawal, R., & Hickey, K. (2022). How was that built?: The stories behind awesome structures. Bloomsbury Children's Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAgrawal, Roma, और Katie Hickey. How Was That Built?: The Stories Behind Awesome Structures. New York: Bloomsbury Children's Books, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAgrawal, Roma, और Katie Hickey. How Was That Built?: The Stories Behind Awesome Structures. Bloomsbury Children's Books, 2022.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.