Dyfyniad APA

Great Britain. Property Services Agency. Library Service & Calder, M. (1975). Energy conservation in building design. Property Services Agency.

Dyfyniad Arddull Chicago

Great Britain. Property Services Agency. Library Service and Margaret Calder. Energy Conservation in Building Design. London: Property Services Agency, 1975.

Dyfyniad MLA

Great Britain. Property Services Agency. Library Service and Margaret Calder. Energy Conservation in Building Design. Property Services Agency, 1975.

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