REFERENCES
- M. O. W. Richardson, D. B. Freeman, K. Brown and N. Djaroud, Trans IMF, 1983, 61, 35.
- D. B. Freeman, K. Brown, M. O. W. Richardson and H. Tiong, Finishing, August 1984, 27.
- M. O. W. Richardson and D. B. Freeman, Trans IMF, 1986, 64, 16.
- D. B. Freeman, Phosphating and Metal Pre-treatment, Woodhead-Faulkner, Cambridge, 1986, 35.
- J. B. Lakeman, D. R. Gabe and M.O.W. Richardson, Trans IMF, 1977, 55, 47.