Allen, Shirley Walter, 4 0 1883-

Conserving natural resources principles and practice in a democracy. 6 6 - - - 347 p. illus. 24 cm. - - - - - . - . - 0 . - . - 0 .



Includes bibliographies.



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54009689

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6 --0-- 2 --------



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Natural resources ------United States.--20--


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HC103.7 / .A72

333.72 / 2

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