1. McCutcheon , J. W. Detergents and Emulsifiers 1966
2. Cronberg , A. D. An Evaluation of Some New Amine Structures as Collectors in Potash Flotation 1966
3. Atwood , G. E. U. S. 2,689,649
4. D'Arcy , G. R. Control of Sulfate in Uranium Concentrates United States Atomic Energy Commission Grand Junction, Colo