Woelfel, C. J. (1987). Budgeting princing r cost controls: A desktop enciyclopedi. Probus Publishing company.
Cita Chicago Style (17a ed.)Woelfel, Charles J. Budgeting Princing R Cost Controls: A Desktop Enciyclopedi. Probus Publishing company, 1987.
Cita MLA (8a ed.)Woelfel, Charles J. Budgeting Princing R Cost Controls: A Desktop Enciyclopedi. Probus Publishing company, 1987.
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