1. Methodological Issues for Health Care Surveys;Cox,1985
2. Health Practices in United States Beef Cow Operations;Dargatz,1994
3. Survey Errors and Survey Costs;Groves,1989
4. Sample Survey Methods and Theory: Volume 1 Methods and Applications;Hansen,1953
5. An evaluation of robust estimation techniques for improving estimates of total hogs;Hicks,1993