Robert D. Copp (Copp, Robert D.)

• 
  Direct And Indirect Human Contributions to Terrestrial Carbon Fluxes: A Workshop Summary
  by Robert D. Copp
  Softcover, Natl Academy Pr, ISBN 0309092264 (0-309-09226-4)
• 
  Direct and Indirect Human Contributions to Terrestrial Carbon Fluxes: A Workshop Summary
  by Stephanie Johnson, National Research Council (U.S.), Robert D. Copp
  Hardcover, National Academies Press, ISBN 030953254X (0-309-53254-X)