OSTWALD, P. F. (1974). Cost Estimating For Engineering And Management Phillip F. Ostwald. Prentice Hall.
Dyfyniad Arddull ChicagoOSTWALD, Phillip F. Cost Estimating For Engineering And Management Phillip F. Ostwald. Prentice Hall, 1974.
Dyfyniad MLAOSTWALD, Phillip F. Cost Estimating For Engineering And Management Phillip F. Ostwald. Prentice Hall, 1974.
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