Não informado. (2019). Building Materials Digest. Leonard Hill Technical Group.
Chicagoスタイル(17版)引用形式Não informado. Building Materials Digest. London: Leonard Hill Technical Group, 2019.
MLA(8版)引用形式Não informado. Building Materials Digest. Leonard Hill Technical Group, 2019.
警告: この引用は必ずしも正確ではありません.