America Encyclopedia (2004). International Edition,
vol. 10
vol. 10
Eldon, D. E. (2006). Environmental France. London: McGraw-Hill.
Elielu, S. A. (2000). Senior Secondary Geography. Ilorin: Facts Computer Centre.
Ikem, K. (2003). An
introduction to environmental studies. Warri: African Publisher.
introduction to environmental studies. Warri: African Publisher.
Karlen, A. (2006). Environmental
protection. Lagos: Achugo.
protection. Lagos: Achugo.
Lal, R. (2010). Oikution
and protection of the environment. Cambridge: Cambridge University Press.
and protection of the environment. Cambridge: Cambridge University Press.
Mirsal, I. A. (2008). Soil
degradation: Soil pollution origin monitoring and remediation – Springer. pp
100.
degradation: Soil pollution origin monitoring and remediation – Springer. pp
100.
Iwena, O. A. (2000). Essential Geography. Ibadan: Toned.
Ojebor, P. M.
(2007). Geography at a primary health care, implementation. A conference paper on EHOAN.
(2007). Geography at a primary health care, implementation. A conference paper on EHOAN.
Ojugbeli, E. (2004). Lecture note on water supply and treatment College of Health
Technology, Ofuoma – Ughelli (unpublished).
Technology, Ofuoma – Ughelli (unpublished).
Umeh, I. (2004). Modern
biology for senior secondary schools (3rd ed). Onitsha: African First.
biology for senior secondary schools (3rd ed). Onitsha: African First.
Umoro, H. (2003). The
Nigeria Environmental Problem: Conservation and Sustainability. Benin city:
Gift Associate Publication
Nigeria Environmental Problem: Conservation and Sustainability. Benin city:
Gift Associate Publication
William, J. (2005). Environmental science. London: McGraw-Hill