Ostwald, P. F. (1974). Cost estimating for engineering and management. Prentice-Hall.
Cita Chicago Style (17a ed.)Ostwald, Phillip F. Cost Estimating for Engineering and Management. Englewood Cliffs: Prentice-Hall, 1974.
Cita MLA (9a ed.)Ostwald, Phillip F. Cost Estimating for Engineering and Management. Prentice-Hall, 1974.
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