dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 2
    Date: 1986
    Page Range: 289--289
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Naumann, Ken - Preston, William B - Ayre, Gordon L
    Type: Article
    In: Journal of the Entomological Society of British Columbia
    Volume: 96
    Date: 1999
    Page Range: 29--68
    Publication Info: [Victoria, etc.], Entomological Society of British Columbia,
  3. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 95
    Issue: 1
    Date: 1981
    Page Range: 113--113
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 107
    Issue: 1
    Date: 1993
    Page Range: 129--129
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 1
    Date: 1991
    Page Range: 133--134
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 123
    Issue: 2
    Date: 2009-04-01
    Page Range: 107--111
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 95
    Issue: 1
    Date: 1981
    Page Range: 112--112
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 93
    Issue: 1
    Date: 1979
    Page Range: 98--98
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 4
    Date: 1975
    Page Range: 477--478
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 1
    Date: 1986
    Page Range: 119--120
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  11. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 95
    Issue: 1
    Date: 1981
    Page Range: 108--109
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  12. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 4
    Date: 1974
    Page Range: 525--525
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  13. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 4
    Date: 1974
    Page Range: 528--528
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  14. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 90
    Issue: 4
    Date: 1976
    Page Range: 510--511
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  15. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 1
    Date: 1986
    Page Range: 123--125
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  16. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 99
    Issue: 3
    Date: 1985
    Page Range: 461--462
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  17. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 3
    Date: 1974
    Page Range: 388--388
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  18. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 1
    Date: 1975
    Page Range: 91--91
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  19. By: Preston, William B
    Type: Article
    In: The Canadian field-naturalist
    Volume: 93
    Issue: 1
    Date: 1979
    Page Range: 94--94
    Publication Info: Ottawa Ottawa Field-Naturalists' Club