deVekey R.C. Bricks, blocks and masonry made from aggregate concrete : performance requirements. Pt. 1, 2001. - 12 p. - Текст : непосредственный.
deVekey R.C. Bricks, blocks and masonry made from aggregate concrete : performance requirements. Pt. 2, 2001. - 8 p. - Текст : непосредственный.