Dyfyniad APA
Howe, K. J., Hand, D. W., Crittenden, J. C., Trussell, R. R. V., & Tchobanoglous, G. (2012). Principles of Water Treatment. John Wiley & Sons.
Dyfyniad Arddull Chicago
Howe, Kerry J., David W. Hand, John C. Crittenden, R. Rhodes V. Trussell, and George Tchobanoglous. Principles of Water Treatment. New Jersey: John Wiley & Sons, 2012.
Dyfyniad MLA
Howe, Kerry J., et al. Principles of Water Treatment. John Wiley & Sons, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.