Hickel, J. K. (1997). The cost-effective organisation. Vanity books international.
Dyfyniad Arddull ChicagoHickel, James K. The Cost-effective Organisation. NewDelhi: Vanity books international, 1997.
Dyfyniad MLAHickel, James K. The Cost-effective Organisation. Vanity books international, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.