Bray,F Sewell. (1949). The measurement of profit. Oxford University Press.
Dyfyniad Arddull ChicagoBray,F Sewell. The Measurement of Profit. London: Oxford University Press, 1949.
Dyfyniad MLABray,F Sewell. The Measurement of Profit. Oxford University Press, 1949.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.