Raushenbush, H. S. (1956). Productivity and employment, 1955-1965. Public Affairs Institute.
Dyfyniad Arddull ChicagoRaushenbush, Hilmar Stephen. Productivity and Employment, 1955-1965. Washington: Public Affairs Institute, 1956.
Dyfyniad MLARaushenbush, Hilmar Stephen. Productivity and Employment, 1955-1965. Public Affairs Institute, 1956.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.