APA (7th ed.) Citation

Medina, L. E., & Hudson, H. E. (1980). Upgrading the old while building the new. American Water Works Association.

Chicago Style (17th ed.) Citation

Medina, Luis E., and H. E. Hudson. Upgrading the Old While Building the New. [Denver]: American Water Works Association, 1980.

MLA (9th ed.) Citation

Medina, Luis E., and H. E. Hudson. Upgrading the Old While Building the New. American Water Works Association, 1980.