943 resultados para semiarid typical grassland


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Part of the Radioisotopes in Industry Training Program of the General Motors Isotope Laboratory.

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Includes bibliographical references.

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Based upon a dissertation by R. I. Van Hook to the Graduate Council of Clemson University in partial fulfillment of the requirements for the degree of Doctor of Philosophy.

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Parts II to X cover the forty-eight states and the District of Columbia arranged according to geographical sections.

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"References" at end of chapters.

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