Multiple-use management of protected natural areas : integrating conservation, restoration, and recreation in the Spanish Basque country / by DuVal, Ashley, Muruetagoiena, Tamar, Ashton, Mark S.

Natural and engineered solutions for drinking water supplies : lessons from the Northeastern United States and directions for global watershed management / by Ashton, Mark S. editor, Gentry, Bradford S. editor, Alcott, emily editor