dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Hanger, Rex A - Echols, Joan
    Type: Article
    In: The Texas journal of science
    Volume: 50
    Issue: 3
    Date: 1998-08
    Page Range: 195--198
    Publication Info: [Lubbock, Tex., etc.], Texas Academy of Science,
  2. By: Echols, Joan
    Type: Article
    In: University of Kansas publications, Museum of Natural History
    Volume: 12
    Date: 1963-10-25
    Page Range: 475--501
    Publication Info: Lawrence, University of Kansas,