Peurifoy, R. L. (1970). Construction planning, equipment and methods. Mc graw - Hill.
Dyfyniad Arddull ChicagoPeurifoy, R L. Construction Planning, Equipment and Methods. New Delhi: Mc graw - Hill, 1970.
Dyfyniad MLAPeurifoy, R L. Construction Planning, Equipment and Methods. Mc graw - Hill, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.