Recommended readings
See the following texts for more information on correspondence analysis:
Fisher, R. A. 1938. Statistical methods for research workers. Edinburgh: Oliver and Boyd.
Fisher, R. A. 1940. The precision of discriminant functions. Annals of Eugenics, 10, 422-429.
Gilula, Z., and S. J. Haberman. 1988. The analysis of multivariate contingency tables by restricted canonical and restricted association models. Journal of the American Statistical Association, 83, 760-771.