B S I. (1981). UDC 624 Civil and structural engineering in general BS (624): 1981. B S I.
Chicago Edition CitationB S I. UDC 624 Civil and Structural Engineering in General BS (624): 1981. London: B S I, 1981.
Cita MLAB S I. UDC 624 Civil and Structural Engineering in General BS (624): 1981. B S I, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.