The phosphates of America. Where and how they occur; how they are mined; and what they cost. With practical treatises on the manufacture of sulphuric acid, acid phosphate, phosphoric acid, and concentrated super-phosphates, and selected methods of chemical analysis Wyatt, Francis, 1916 creator text book New York The Scientific Pub. Co 1892 1892 3d ed.
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ENG Phosphates S647 .W98 https://www.biodiversitylibrary.org/bibliography/45213 1829015 10.5962/bhl.title.45213 DLC