Karen L. Spray books & textbook
Ground Water Atlas of Colorado (Special Publication 53)
Ralf Topper Karen L. Spray Wiliam H. Bellis Judith L. Hamilton Peter E. Barkmann
Colorado Geological Survey /2003T Spiral-bound / 210 Pages
isbn-10: 1884216587 / isbn-13: 9781884216589
Wetlands (Exploring Environmental Challenges: A Multidisciplinary Approach)
Spray, Sharon L. McGlothlin, Karen L. Callaway, John C. Faulkner, Stephen Hague, Mary A. Meyer, William B. Power, Thomas Michael Snodgrass, Joel W.
Rowman & Littlefield Publishers /2004-02-16 Paperback / 216 Pages
isbn-10: 0742525694 / isbn-13: 9780742525696
Loss of Biodiversity (Exploring Environmental Challenges: A Multidisciplinary Approach)
Spray, Sharon L. McGlothlin, Karen L. Anderson, David Backus, David Balch, Alan Gibbons, J Whitfield Haskell, David Minteer, Ben Press, Daniel
Rowman & Littlefield Publishers /2003-10-22 Paperback / 176 Pages
isbn-10: 0742525678 / isbn-13: 9780742525672
