Harlow, C. (1977). Innovation and productivity under nationalisation: The first thirty years. George Allen and Unwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarlow, Chris. Innovation and Productivity Under Nationalisation: The First Thirty Years. George Allen and Unwin, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHarlow, Chris. Innovation and Productivity Under Nationalisation: The First Thirty Years. George Allen and Unwin, 1977.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.