APA (7th ed.) Citation

Drewry, W. A. (1971). Virus removal -- water and wastewater: July 1, 1969 - December 31, 1971. The University of Tennessee.

Chicago Style (17th ed.) Citation

Drewry, William A. Virus Removal -- Water and Wastewater: July 1, 1969 - December 31, 1971. Knoxville, Tenn.: The University of Tennessee, 1971.

MLA (9th ed.) Citation

Drewry, William A. Virus Removal -- Water and Wastewater: July 1, 1969 - December 31, 1971. The University of Tennessee, 1971.