References
- Gorrie , W. and Wilton , S. 2001 . Grading and handling around the farm, part 2 . Hatchery International , 2 ( 2 ) and status of the channel catfish industry. Hatchery Magazine 1(4): 8–9.
- SPSS Science Inc. 1997 . SigmaStat Statistical Software, Version 2.0 for Windows Chicago, Illinois
- Tucker , C. S. and Robinson , E. H. 1990 . Channel Catfish Farming Handbook , New York, New York : Van Nostrand Reinhold .