Carroll, P. (1952). How to control production costs. Mcgraw-hill book company.
Dyfyniad Arddull ChicagoCarroll, Phil. How to Control Production Costs. New York: Mcgraw-hill book company, 1952.
Dyfyniad MLACarroll, Phil. How to Control Production Costs. Mcgraw-hill book company, 1952.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.