AECOM (Firm). (2018). Spon's civil engineering and highway works price book: 2018 (Thirty-second edition.). CRC Press.
Cita Chicago (17th ed.)AECOM (Firm). Spon's Civil Engineering and Highway Works Price Book: 2018. Thirty-second edition. London: CRC Press, 2018.
Cita MLA (9th ed.)AECOM (Firm). Spon's Civil Engineering and Highway Works Price Book: 2018. Thirty-second edition. CRC Press, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.