Recommended Readings
See the following texts for more information on complex sampling:
Cochran, W. G. 1977. Sampling Techniques, 3rd ed. New York: John Wiley and Sons.
Kish, L. 1965. Survey Sampling. New York: John Wiley and Sons.
Kish, L. 1987. Statistical Design for Research. New York: John Wiley and Sons.
Murthy, M. N. 1967. Sampling Theory and Methods. Calcutta, India: Statistical Publishing Society.