Snell, M. (1997). Cost-benefit analysisfor engineers and plannersMichael Snell. Thomas Telford.
Dyfyniad Arddull ChicagoSnell, Michael. Cost-benefit Analysisfor Engineers and PlannersMichael Snell. Thomas Telford, 1997.
Dyfyniad MLASnell, Michael. Cost-benefit Analysisfor Engineers and PlannersMichael Snell. Thomas Telford, 1997.
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