A Douglas Hillman. (1984). Principles of accounting (3rd ed.). Dryden Press.
Dyfyniad Arddull ChicagoA Douglas Hillman. Principles of Accounting. 3rd ed. Chicago: Dryden Press, 1984.
Dyfyniad MLAA Douglas Hillman. Principles of Accounting. 3rd ed. Dryden Press, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.