Geddes, S., & Chrystal-Smith, G. (1963). Estimating for building and civil engineering works: For the use of builders, public works contractors, architects civil engineers and surveyors (3rd ed.). London: George Newnes Limited.
Παραπομπή Chicago StyleGeddes, Spence, and G. Chrystal-Smith. Estimating for Building and Civil Engineering Works: For the Use of Builders, Public Works Contractors, Architects Civil Engineers and Surveyors. 3rd ed. London: George Newnes Limited, 1963.
Παραπομπή MLAGeddes, Spence, and G. Chrystal-Smith. Estimating for Building and Civil Engineering Works: For the Use of Builders, Public Works Contractors, Architects Civil Engineers and Surveyors. 3rd ed. London: George Newnes Limited, 1963.
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