Não informado. (1989). Journal of Materials in Civil Engineering. American Society of Civil Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Materials in Civil Engineering. New York: American Society of Civil Engineers, 1989.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Materials in Civil Engineering. American Society of Civil Engineers, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.