J.J.Roberts. (1983). Concrete masonry Designer's handbook. View Point Pub.
Chicago Edition CitationJ.J.Roberts. Concrete Masonry Designer's Handbook. Surrey: View Point Pub, 1983.
Cita MLAJ.J.Roberts. Concrete Masonry Designer's Handbook. View Point Pub, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.