APA (7th ed.) Citation

Ragin, M. M., & Brooks, D. R. (1990). Recovery of sulfur from phosphogypsum: Conversion of calcium sulfate to calcium sulfide. United States Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Ragin, Margaret M., and D. R. Brooks. Recovery of Sulfur from Phosphogypsum: Conversion of Calcium Sulfate to Calcium Sulfide. Pgh. [i.e. Pittsburgh] PA: United States Dept. of the Interior, Bureau of Mines, 1990.

MLA (9th ed.) Citation

Ragin, Margaret M., and D. R. Brooks. Recovery of Sulfur from Phosphogypsum: Conversion of Calcium Sulfate to Calcium Sulfide. United States Dept. of the Interior, Bureau of Mines, 1990.