Latham, D., & Vaughn, J. (2012). Bridges and tunnels: Investigate feats of engineering. Nomad Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLatham, Donna, और Jen Vaughn. Bridges and Tunnels: Investigate Feats of Engineering. White River Junction, VT: Nomad Press, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLatham, Donna, और Jen Vaughn. Bridges and Tunnels: Investigate Feats of Engineering. Nomad Press, 2012.
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