Ostler, P., Bailey, A. C., & Scott, J. P. (1979). Estimating highway construction costs: Program COSMOS. Transport and Road Research Laboratory.
Citace podle Chicago (17th ed.)Ostler, P., A. C. Bailey, a J. P. Scott. Estimating Highway Construction Costs: Program COSMOS. Crowthorne, [Eng.]: Transport and Road Research Laboratory, 1979.
Citace podle MLA (9th ed.)Ostler, P., et al. Estimating Highway Construction Costs: Program COSMOS. Transport and Road Research Laboratory, 1979.
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