Peurifoy, R. L., & Oberlender, G. D. (2002). Estimating construction costs (5th ed.). McGraw-Hill.
Cita Chicago (17th ed.)Peurifoy, Robert Leroy, i Garold D. Oberlender. Estimating Construction Costs. 5th ed. Boston: McGraw-Hill, 2002.
Cita MLA (9th ed.)Peurifoy, Robert Leroy, i Garold D. Oberlender. Estimating Construction Costs. 5th ed. McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.