Não informado. (2004). Civil engineering systems. Butterworth Scientific.
Chicagoスタイル(17版)引用形式Não informado. Civil Engineering Systems. Guildford, Inglaterra: Butterworth Scientific, 2004.
MLA(8版)引用形式Não informado. Civil Engineering Systems. Butterworth Scientific, 2004.
警告: この引用は必ずしも正確ではありません.