1. Soft phosphate in poultry nutrition.;Almquist;Feedstuffs,,1962
2. Association of Official Agricultural Chemists, 1955. Methods of Analysis. 8th Ed., Washington, D.C
3. Availability of calcium in feed grade phosphates to the chick.;Dilworth;Poultry Sci.,1964
4. Influence of levels of vitamin D and calcium on the utilization of phosphorus by the growing chick.;Fritz;Poultry Sci.,1966
5. The effect of vitamin D3on the utilization of phosphorus from various sources.;McKnight;Poultry Sci.,1966