Virus Transport and Survival in Saturated and Unsaturated Flow through Soil Columns Item Type Dissertation-Reproduction (electronic); text Authors Powelson, David Keith,1948- Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 25/04/2020 16:46:29 Link to Item http://hdl.handle.net/10150/191160