Owen, Oliver S., 4 0 1920-
Natural resource conservation : an ecological approach / 6 6 Oliver S. Owen. - 3d ed. - - xi, 883 pages : illustrations 26 cm. - - - - - . - . - 0 . - . - 0 .
Includes bibliographies and index.
5
5
0023900202;9780023900204
2 = =
79013405
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
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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S938 / .O87 19802
/ 2
/
/
Natural resource conservation : an ecological approach / 6 6 Oliver S. Owen. - 3d ed. - - xi, 883 pages : illustrations 26 cm. - - - - - . - . - 0 . - . - 0 .
Includes bibliographies and index.
5
5
0023900202;9780023900204
2 = =
79013405
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
Conservation of natural resources.;Ecology.;Environmental protection.;Conservation of natural resources;Ecology;Environmental protection ------United States.;United States.;United States.--20--
--------20--
----2
S938 / .O87 19802
/ 2
/
/