1. Consortium, 1988. Guide for the Care and Use of Agricultural Animals in Agricultural Research and Teaching. Consortium for Developing a Guide for the Care and Use of Agricultural Animals in Agricultural Research and Teaching, Champaign, IL.
2. De Groote, G., 1983. Biological availability of phosphorus in feed phosphates for broilers. Pages 91-102 in: Fourth European Symposium Poultry Nutrition, Tours, France.
3. Statistical Methods in Biological Assay;Finney,1978
4. Use of toe ash as a measurement of calcification in the chick;Fritz;J. Assoc. Offic. Anal. Chem.,1968
5. Studies on the availability of calcium orthophosphates to chickens and turkeys;Fritz;J. Nutr.,1969