The Journal of the American Society of Safety Engineers. American Society of Safety Professionals (ASSP).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Journal of the American Society of Safety Engineers. American Society of Safety Professionals (ASSP).
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Journal of the American Society of Safety Engineers. American Society of Safety Professionals (ASSP).
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