As this article doesn't contain an abstract, the image below is necessary to enable the article to be indexed by certain search engines. The resolution of the full-text PDF is much higher than that shown here.
Productivity. Edited by K. R. Reddy and H. F. Hodges. Wallingford, UK: CABI Publishing (2000), pp. 471, £75.00. ISBN 0-85199-439-3.