Power and works engineering. Tothill Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPower and Works Engineering. London: Tothill Press.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPower and Works Engineering. Tothill Press.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.