(1968). The Comitee On Sports And Recreational Areas Of The Illuminating Engineering Society. IES.
Chicago-viite (17. p.)The Comitee On Sports And Recreational Areas Of The Illuminating Engineering Society. IES, 1968.
MLA-viite (8. p.)The Comitee On Sports And Recreational Areas Of The Illuminating Engineering Society. IES, 1968.
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