L., P., R., J., S., C.(2002).Construction planning, equipment, and methods / Robert L. Peurifoy, Clifford J. Schexnayder (Ed.ke-6).New York:McGraw Hill.
Gaya MLA
Peurifoy, Robert, L.., Schexnayder, Clifford, J.."Construction planning, equipment, and methods / Robert L. Peurifoy, Clifford J. Schexnayder".Ed.ke-6New York:McGraw Hill,2002.Textbook.