Llewelyn-Davies, R., Petty, D. J., & Allen, W. A. (1969). Building elements (3rd ed., revised.). London: The Architectural Press.
Παραπομπή Chicago StyleLlewelyn-Davies, Richard, David John Petty, and W. A. Allen. Building Elements. 3rd ed., revised. London: The Architectural Press, 1969.
Παραπομπή MLALlewelyn-Davies, Richard, David John Petty, and W. A. Allen. Building Elements. 3rd ed., revised. London: The Architectural Press, 1969.
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