(1968). The Comitee On Sports And Recreational Areas Of The Illuminating Engineering Society. IES.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Comitee On Sports And Recreational Areas Of The Illuminating Engineering Society. IES, 1968.
एमएलए (8वां संस्करण) प्रशस्ति पत्रThe Comitee On Sports And Recreational Areas Of The Illuminating Engineering Society. IES, 1968.
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