Dyfyniad APA

.Williams, R. I., & Doris, L. (1956). Encyclopedia of accounting systems. Prentice-Hall.

Dyfyniad Arddull Chicago

.Williams, Robert I., and Lillian Doris. Encyclopedia of Accounting Systems. .Englewood Cliffs, N.J: Prentice-Hall, 1956.

Dyfyniad MLA

.Williams, Robert I., and Lillian Doris. Encyclopedia of Accounting Systems. Prentice-Hall, 1956.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.