Não informado. (1960). American Machinist and Metalworking Manufacturing. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. American Machinist and Metalworking Manufacturing. New York: McGraw-Hill, 1960.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. American Machinist and Metalworking Manufacturing. McGraw-Hill, 1960.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.