Geddes, S., & Chrystal-Smith, G. (1976). Estimating for building and civil engineering works: Incorporating building and public works administration, estimating and costing (6th ed.). London: Newnes-Butterworths.
Παραπομπή Chicago StyleGeddes, Spence., and G. Chrystal-Smith. Estimating for Building and Civil Engineering Works: Incorporating Building and Public Works Administration, Estimating and Costing. 6th ed. London: Newnes-Butterworths, 1976.
Παραπομπή MLAGeddes, Spence., and G. Chrystal-Smith. Estimating for Building and Civil Engineering Works: Incorporating Building and Public Works Administration, Estimating and Costing. 6th ed. London: Newnes-Butterworths, 1976.
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