Owen, Oliver S., 4 0 1920-
Natural resource conservation : an ecological approach / 6
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Oliver S. Owen.
- 3d ed.
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- xi, 883 pages : illustrations 26 cm.
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Includes bibliographies and index.
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0023900202;9780023900204
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Conservation of natural resources.;Ecology.;Environmental protection.;Conservation of natural resources;Ecology;Environmental protection ------United States.;United States.;United States.--20--
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