ArticlesPerspectives on Needs and Supplies of Resources

The Age of Substitutability

See allHide authors and affiliations

Science  20 Feb 1976:
Vol. 191, Issue 4228, pp. 683-689
DOI: 10.1126/science.191.4228.683

This is a PDF-only article. The first page of the PDF of this article appears below.

PDF extract preview