Dyfyniad APA
Douglas, J. F., Gasiorek, J. M., & Swaffield, J. A. (2001). Fluid mechanics (4th ed.). Pearson Education.
Dyfyniad Arddull Chicago
Douglas, John F., J. M. Gasiorek, and J. A. Swaffield. Fluid Mechanics. 4th ed. New Delhi: Pearson Education, 2001.
Dyfyniad MLA
Douglas, John F., et al. Fluid Mechanics. 4th ed. Pearson Education, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.