Circular 1200, Florida Cooperative Extension Service, University of Florida, November 1997. This document is one of the Florida Food and Resource Economics series, No. 138, Food and Resource Economics Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Editorial assistance for Florida Food and Resource Economics is provided by Kim Box. Articles appearing in Florida Food and Resource Economics may be reproduced, in whole or in part, without special permission. Newspapers, periodicals and other publications are encouraged to reprint articles that would be of interest to their readers.
Credit is requested if information is reprinted.
C. Polopolus, Professor Emeritus, Food and Resource Economics Department, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611.