Dyfyniad APA
Eisenberg, B., Lindow, K. C., & Smith, D. R. (2015). Permeable pavements. American Society of Civil Engineers.
Dyfyniad Arddull Chicago
Eisenberg, Bethany, Kelly Collins Lindow, and David R. Smith. Permeable Pavements. Reston: American Society of Civil Engineers, 2015.
Dyfyniad MLA
Eisenberg, Bethany, et al. Permeable Pavements. American Society of Civil Engineers, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.