Engineering Careers Information Service. (1979). Careers in engineering: Guide notes. Engineering Careers Information Service.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEngineering Careers Information Service. Careers in Engineering: Guide Notes. London: Engineering Careers Information Service, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEngineering Careers Information Service. Careers in Engineering: Guide Notes. Engineering Careers Information Service, 1979.
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