Johnston, A. K., Connor, R., Stephens, C. E., & Ceruzzi, P. E. (2015). Time and navigation: The untold story of getting from here to there. Smithsonian Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohnston, Andrew K., Roger Connor, Carlene E. Stephens, और Paul E. Ceruzzi. Time and Navigation: The Untold Story of Getting from Here to There. Washington, DC: Smithsonian Books, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रJohnston, Andrew K., et al. Time and Navigation: The Untold Story of Getting from Here to There. Smithsonian Books, 2015.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.