APA (7 वां संस्करण) प्रशस्ति पत्र

Não informado. (1957). Summary of engineering research. University of Illinois, Engineering Experiment Station.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Não informado. Summary of Engineering Research. Urbana, Ill: University of Illinois, Engineering Experiment Station, 1957.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Não informado. Summary of Engineering Research. University of Illinois, Engineering Experiment Station, 1957.

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