1. The aluminum phosphate zone of the Bone Valley Formation, Florida, and its uranium deposits;Altschuler;U.S. Geol. Survey Prof. Pap.,1956
2. The genesis of carbonate apatites;Ames;Econ. Geol.,1959
3. More phosphate from Thies;Anonymous;Phosphorus Potassium,1975
4. Spectra structure correlations in hydroxy- and fluorapatite;Baddiel;Spectrochim. Acta,1966
5. Transportation affects phosphate output;Bradley;Chem. Eng. Prog.,1964