Goetsch, D. L. (2011). Occupational safety and health for technologists, engineers, and managers (7th ed.). Prentice Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGoetsch, David L. Occupational Safety and Health for Technologists, Engineers, and Managers. 7th ed. Upper Saddle River, N.J: Prentice Hall, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGoetsch, David L. Occupational Safety and Health for Technologists, Engineers, and Managers. 7th ed. Prentice Hall, 2011.
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