Long, I. (2021). ESSENTIALS OF SAFETY: Maintaining the balance. CRC Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLong, Ian. ESSENTIALS OF SAFETY: Maintaining the Balance. [Place of publication not identified]: CRC Press, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLong, Ian. ESSENTIALS OF SAFETY: Maintaining the Balance. CRC Press, 2021.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.