AECOM (Firm), LandPro Ltd Landscape Surveyors, & E. & F.N. Spon. (2015). Spon's external works and landscape price book: 2015 (Thirty-fourth edition.). CRC Press.
Chicago Style (17th ed.) CitationAECOM (Firm), LandPro Ltd Landscape Surveyors, and E. & F.N. Spon. Spon's External Works and Landscape Price Book: 2015. Thirty-fourth edition. Boca Raton: CRC Press, 2015.
MLA (9th ed.) CitationAECOM (Firm), et al. Spon's External Works and Landscape Price Book: 2015. Thirty-fourth edition. CRC Press, 2015.
Warning: These citations may not always be 100% accurate.