THUMANN, A. (1994). Energy Management Guide For Government Buildings. The Fairmant Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTHUMANN, Albert. Energy Management Guide For Government Buildings. The Fairmant Press, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTHUMANN, Albert. Energy Management Guide For Government Buildings. The Fairmant Press, 1994.
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