(1976). Doors: Measurement of defects of general flatness of door leaves. London: British Standards Institution.
Παραπομπή Chicago StyleDoors: Measurement of Defects of General Flatness of Door Leaves. London: British Standards Institution, 1976.
Παραπομπή MLADoors: Measurement of Defects of General Flatness of Door Leaves. London: British Standards Institution, 1976.
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