APA (7th ed.) Citation

Martin, Q. W. (1999). Drop by drop: The life cycle of the lower Colorado River (Rev. ed. July 1999.). Lower Colorado River Authority.

Chicago Style (17th ed.) Citation

Martin, Quentin W. Drop by Drop: The Life Cycle of the Lower Colorado River. Rev. ed. July 1999. Austin, Tex.: Lower Colorado River Authority, 1999.

MLA (9th ed.) Citation

Martin, Quentin W. Drop by Drop: The Life Cycle of the Lower Colorado River. Rev. ed. July 1999. Lower Colorado River Authority, 1999.