Williams, R. I., & Doris, L. (1957). Encyclopaedia of accounting systems. Prentice Hall Inc.
Dyfyniad Arddull ChicagoWilliams, Robert I., and Lillian Doris. Encyclopaedia of Accounting Systems. Englewood: Prentice Hall Inc, 1957.
Dyfyniad MLAWilliams, Robert I., and Lillian Doris. Encyclopaedia of Accounting Systems. Prentice Hall Inc, 1957.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.