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  1. By: Robertson, Kenneth Ray, - Burton, P. J. K. (Philip John Kennedy), - McKnight, Bill N. - Illinois. Natural History Survey Division
    Publication info: Champaign, Ill, Illinois Natural History Survey, [1986]
    Holding Institution: University Library, University of Illinois Urbana Champaign
  2. By: Burton, Philip J. - Robertson, Kenneth Ray, - Dennis, Ann - Robertson, Kenneth Ray,
    Edition: 2nd ed.
    Publication info: [Champaign, Ill.] (607 E. Peabody Dr., Champaign 61820), [Section of Botany and Plant Pathology, Illinois Natural History Survey], [1989]
    Holding Institution: University Library, University of Illinois Urbana Champaign
  3. By: Robertson, Kenneth Ray, - Illinois. Natural History Survey Division
    Publication info: Urbana, [Ill], Illinois Natural History Survey, 1980
    Holding Institution: University Library, University of Illinois Urbana Champaign
  4. By: Robertson, Kenneth Ray, - Himelick, E. B. (Eugene Bryson), - Highland Park, Ill. Public Works Dept. - Highland Park, Ill. Community Development Dept. - Illinois. Natural History Survey Division
    Publication info: Urbana, The Survey, 1977
    Holding Institution: University Library, University of Illinois Urbana Champaign
  1. By: Robertson, Kenneth Ray,
    Type: Article
    In: Arnoldia
    Volume: 36
    Issue: 2
    Date: 1976
    Page Range: 37--49
    Publication Info: Jamaica Plain, Mass Arnold Arboretum, Harvard University
  2. By: Robertson, Kenneth Ray,
    Type: Article
    In: Arnoldia
    Volume: 37
    Issue: 3
    Date: 1977
    Page Range: 137--150
    Publication Info: Jamaica Plain, Mass Arnold Arboretum, Harvard University
  3. By: Thieret, John W. - Rogers, G K - Robertson, Kenneth Ray, - Kuijt, J - Miller, N G - Kral, R - Wurdack, John J. - Weaver, Richard E., Jr. - Wood, Carroll E., - Jones, Samuel B.,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 63
    Issue: 4
    Date: 1982
    Page Range: 337-507
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  4. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 62
    Issue: 3
    Date: 1981
    Page Range: 267--313
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  5. By: Lee, Y T - Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 57
    Issue: 1
    Date: 1976
    Page Range: 1--53
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  6. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 53
    Issue: 2
    Date: 1972
    Page Range: 182--201
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  7. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 57
    Issue: 2
    Date: 1976
    Page Range: 205--216
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  8. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 63
    Issue: 4
    Date: 1982
    Page Range: 387--399
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  9. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 55
    Issue: 4
    Date: 1974
    Page Range: 611--662
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  10. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 55
    Issue: 3
    Date: 1974
    Page Range: 344--401
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  11. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 55
    Issue: 2
    Date: 1974
    Page Range: 303--332
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  12. By: Robertson, Kenneth Ray,
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 53
    Date: 1966
    Page Range: 197--204
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  13. By: Robertson, Kenneth Ray,
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 61
    Date: 1974
    Page Range: 502--513
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  14. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 54
    Issue: 2
    Date: 1973
    Page Range: 322--327
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  15. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 52
    Issue: 4
    Date: 1971
    Page Range: 649--665
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  16. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 53
    Issue: 1
    Date: 1972
    Page Range: 101--112
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  17. By: Robertson, Kenneth Ray,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 56
    Issue: 2
    Date: 1975
    Page Range: 223--239
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-