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   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">W.W. Seifert.</dim:field>
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   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Department of Civil and Environmental Engineering</dim:field>
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   <dim:field mdschema="dc" element="description" lang="en_US">Thesis. 1975. Sc.D.--Massachusetts Institute of Technology. Dept. of Civil Engineering.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Vita.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Bibliography: leaves 241-250.</dim:field>
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   <dim:field mdschema="dc" element="subject" lang="en_US">Civil and Environmental Engineering</dim:field>
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   <dim:field mdschema="dc" element="title" lang="en_US">A systems analysis of pastoralism in the West African Sahel.</dim:field>
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