(1976). Spon's architects' and builders' price book (101st ed.). London: E. & FN. Spon.
Παραπομπή Chicago StyleSpon's Architects' and Builders' Price Book. 101st ed. London: E. & FN. Spon, 1976.
Παραπομπή MLASpon's Architects' and Builders' Price Book. 101st ed. London: E. & FN. Spon, 1976.
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