Showing 1 - 2 results of 2 for search 'Steffen, W. L. (William L.), 1947-', query time: 0.01s Refine Results
  1. 1

    Sustainability or collapse? an integrated history and future of people on earth /

    Published 2007
    Other Authors:
    An electronic book accessible through the World Wide Web; click to view
    Electronic Conference Proceeding eBook
  2. 2

    Sustainability or collapse? an integrated history and future of people on earth /

    Published 2007
    Other Authors:
    An electronic book accessible through the World Wide Web; click to view
    Electronic Conference Proceeding eBook