Purday, H. F. P. (1937). Diesel engine design (4th ed.). Constable.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPurday, Herbert Frank Percy. Diesel Engine Design. 4th ed. London: Constable, 1937.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPurday, Herbert Frank Percy. Diesel Engine Design. 4th ed. Constable, 1937.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.