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  1. By: Brooks, Robert T. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Radnor, Pa. :U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station,[1992]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Brooks, Robert T. - Miller-Weeks, Margaret. - Burkman, William. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Radnor, Pa. :U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station,1991.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Brooks, Robert T. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, Pa. :U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station,1986.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: Brooks, Robert T. - Kittredge, David B. - Alerich, Carol L. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Radnor, PA :U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station,[1993]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  5. By: Brooks, Robert T. - Frieswyk, Thomas S. - Ritter, Arthur. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, Pa. :U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station,1986.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  6. By: Brooks, Robert T. - DiGiovanni, Dawn M. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, PA :Northeastern Forest Experiment Station,. [1989]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  7. By: Brooks, Robert T. - Frieswyk, Thomas S. - Malley, Anne M. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, Pa. :U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station,1987.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  8. By: Brooks, Robert T. - Frieswyk, Thomas S. - Malley, Anne M. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, Pa. :U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station,1987.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library