States), N. C. M. A. (. (1993). Fire resistance rating of concrete masonry assemblies. Herndon, Vir., : National Concrete Mansonry Association.
Цитирование в стиле Чикаго (17-е изд.)States), National Concrete Masonry Association (United. Fire Resistance Rating of Concrete Masonry Assemblies. Herndon, Vir., : National Concrete Mansonry Association, 1993.
Цитирование MLA (9-е изд.)States), National Concrete Masonry Association (United. Fire Resistance Rating of Concrete Masonry Assemblies. Herndon, Vir., : National Concrete Mansonry Association, 1993.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.