Dyfyniad APA

American Society of Civil Engineers. (2020). Standard guidelines for managed aquifer recharge, ASCE/EWRI 69-19. American Society of Civil Engineers.

Dyfyniad Arddull Chicago

American Society of Civil Engineers. Standard Guidelines for Managed Aquifer Recharge, ASCE/EWRI 69-19. Reston, Virginia: American Society of Civil Engineers, 2020.

Dyfyniad MLA

American Society of Civil Engineers. Standard Guidelines for Managed Aquifer Recharge, ASCE/EWRI 69-19. American Society of Civil Engineers, 2020.

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