References

Bowman, B.A. and R.M. Russel, 2001. Present Knowledge in Nutrition. 8th Edn., International Life Sciences Press, Washington, DC, USA .

Fleet, J.C. and K.D. Cashman, 2001. Magnesium. In: Present Knowledge in Nutrition. 8th Edn., Bowman, B.A. and R.M. Russel (Eds.). ILSI Press, Washington, DC, USA., pp: 292-301.

Havlin, J.L., J.D. Beaton, S.L. Tisdale and W.L. Nelson, 2003. Soil Fertility and Fertilizers. 6th Edn., Pearson Education, Pearson Education, Pages: 499.

Hornby, A.S., 2000. Oxford Advanced Learner's Dictionary. 6th Edn., Oxford University Press, UK., ISBN: 9780194367950.

Leach, R.M.J. and E.D. Harris, 1997. Manganese. In: Handbook of Nutritionally Essential Minerals. O'Dell, B.L. and R.A. Sunde (Eds.). Marcel Dekker, New York, USA., pp: 335-355.

MAFF, 1981. Ministry of Agriculture, Fisheries and Food: Review of Financial Planning and Control Systems. Academics S.L. Leon, UK., Pages: 221.

NRC, 1983. Selenium in Nutrition. Rev. Edn., National Academy Press, Washington, DC, USA.

Nwafor, J.C., 2006. Environmental Impact Assessment for Sustainable Development: The Nigerian Perspective. Environment and Development Policy Centre for Africa, Enugu.

Onigbinde, A.O., 2001. Food and Human Nutrition (Biochemical Integration). Ilepeju Publishers Ltd., Benin City, Pages: 300.

Onwuka, G.I., 2005. Food Analysis and Instrumentation, Theory and Practice. Naphthali Print, Lagos, Nigeria.

Radojevic, M. and V.N. Bashkin, 1999. Practical Environment Analysis. Royal Society of Chemistry, Cambridge, UK.

Sizer, F. and E. Whitney, 1994. Nutrition: Concepts and Controversy. 6th Edn., West Publishers Coy, USA.

Smith, J.E., 1996. Biotechnology. 3rd Edn., Cambridge University Press, Cambridge, UK., pp: 140-159.

Stoecker, B.J., 2001. Chromium. In: Present Knowledge in Nutrition, 8th Edn., Bowman, B.A. and R.M. Russel (Eds.). International Life Sciences Press, Washington, DC USA., pp: 366-372.

Vogel, A.I., 1978. Vogel's Textbook of Quantitative Inorganic Analysis: Including Elementary Instrumental Analysis. 4th Edn., Longman Group Limited, London, Pages: 925.

Whitney, E.N., C.B. Cataldo and S.R. Rolfes, 1987. Understanding Normal and Clinical Nutrition. 2nd Edn., West Publishing Company, New York, USA., Pages: 413.