Key:

  • R Restricted Access
  • F Full Access

Contents:

    1. R Agricultural Ecology:The Impact of the Aswanhigh Dam Reconsidered
      1. Robert C. Hunt
    2. R Readers' Column
      1. Cynthia Mackie

Book Reviews

    1. R Book Review
      1. Susan H. Lees

    1. R Evolution of a Pennsylvania Dairy Farm
      1. Les E. Lanyon
    2. R Notes and Announcements