Dyfyniad APA
Weygandt, J. J., Kieso, D. E., & Kimmel, P. D. (1999). Accounting principles (5th ed.). John Wiley & Sons.
Dyfyniad Arddull Chicago
Weygandt, Jerry J., Donald E. Kieso, and Paul D. Kimmel. Accounting Principles. 5th ed. New York: John Wiley & Sons, 1999.
Dyfyniad MLA
Weygandt, Jerry J., et al. Accounting Principles. 5th ed. John Wiley & Sons, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.