Gillespie, C. (1970). Standard and Direct Costing. Prentice-Hall of India.
Dyfyniad Arddull ChicagoGillespie, Cecil. Standard and Direct Costing. New Delhi: Prentice-Hall of India, 1970.
Dyfyniad MLAGillespie, Cecil. Standard and Direct Costing. Prentice-Hall of India, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.