Natural resource conservation :
Owen, Oliver S.
Natural resource conservation : management for a sustainable future / Oliver S. Owen - 7th ed. - New York : Prentice Hall, c1998.
Environmental science
S938 / .O87 1998
Natural resource conservation : management for a sustainable future / Oliver S. Owen - 7th ed. - New York : Prentice Hall, c1998.
Environmental science
S938 / .O87 1998