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  1. By: Bratcher, Twila, - Burch, R. D.
    Type: Article
    In: The veliger
    Volume: 12
    Date: 1970
    Page Range: 295--300
    Publication Info: Berkeley, CA, California Malacozoological Society,
  2. By: Bratcher, Twila,
    Type: Article
    In: The veliger
    Volume: 30
    Date: 1988
    Page Range: 412--416
    Publication Info: Berkeley, CA, California Malacozoological Society,
  3. By: Bratcher, Twila, - Burch, R. D.
    Type: Article
    In: Contributions in science
    Volume: 188
    Date: 1970-05-04
    Page Range: 1--6
    Publication Info: Los Angeles, Calif, The Museum, [1957]-
  4. By: Bratcher, Twila,
    Type: Article
    In: The veliger
    Volume: 22
    Date: 1979
    Page Range: 65--66
    Publication Info: Berkeley, CA, California Malacozoological Society,
  5. By: DuShane, Helen - Bratcher, Twila,
    Type: Article
    In: The veliger
    Volume: 8
    Date: 1965
    Page Range: 160--161
    Publication Info: Berkeley, CA, California Malacozoological Society,
  6. By: Bratcher, Twila, - Burch, R. D.
    Type: Article
    In: The veliger
    Volume: 10
    Date: 1967
    Page Range: 7--9
    Publication Info: Berkeley, CA, California Malacozoological Society,
  7. By: Cernohorsky, Walter Oliver. - Bratcher, Twila,
    Type: Article
    In: Records of the Auckland Institute and Museum
    Volume: 13
    Date: 1976
    Page Range: 131--140
    Publication Info: Auckland, N.Z Auckland Institute and Museum 1930-97
  8. By: Bratcher, Twila,
    Type: Article
    In: The veliger
    Volume: 21
    Date: 1978
    Page Range: 144--145
    Publication Info: Berkeley, CA, California Malacozoological Society,
  9. By: Bratcher, Twila, - Burch, R. D.
    Type: Article
    In: Proceedings of the California Academy of Sciences, 4th series
    Volume: 37
    Series: 4
    Date: 1971
    Page Range: 537--566
    Publication Info: San Francisco California Academy of Sciences