AECOM (Firm). (2018). Spon's civil engineering and highway works price book: 2018 (Thirty-second edition.). CRC Press.
Citazione stile Chigago Style (17a edizione)AECOM (Firm). Spon's Civil Engineering and Highway Works Price Book: 2018. Thirty-second edition. London: CRC Press, 2018.
Citatione MLA (9a ed.)AECOM (Firm). Spon's Civil Engineering and Highway Works Price Book: 2018. Thirty-second edition. CRC Press, 2018.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.