dcsimg
Sort By:
  1. By: Betrem, J G
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 88
    Date: 1947
    Page Range: 409--416
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  2. By: Betrem, J G
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 78
    Date: 1935
    Page Range: 1--78
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  3. By: Betrem, J G
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: Suppl. 75
    Date: 1932
    Page Range: 89--96
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  4. By: Betrem, J G
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 95
    Date: 1951
    Page Range: 331--340
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  5. By: Betrem, J G
    Type: Article
    In: Entomological news.
    Volume: 74
    Date: 1963
    Page Range: 70--72
    Publication info: [Philadelphia]American Entomological Society,1925-
  6. By: Betrem, J G
    Type: Article
    In: Entomological news.
    Volume: 73
    Date: 1962
    Page Range: 205--207
    Publication info: [Philadelphia]American Entomological Society,1925-
  7. By: Betrem, J G
    Type: Article
    In: Entomological news.
    Volume: 73
    Date: 1962
    Page Range: 146--146
    Publication info: [Philadelphia]American Entomological Society,1925-
  8. By: Bradley, J Chester - Betrem, J G
    Type: Article
    In: Bulletin of the British Museum (Natural History).
    Volume: 20
    Date: 1967
    Page Range: 287--327
    Publication info: London :The Museum,1950-1977.
  9. By: Betrem, J G
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 103
    Date: 1960
    Page Range: 51--81
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.