https://dev.peprbooks.com/api/v1/buyback.php?apikey={{your_api_key_here}}&isbn={{isbn}}&returnKind={{returnKind}}&includebookmetadata={{boolean}}

https://dev.peprbooks.com/api/v1/buyback.php?apikey=Public
&isbn=9780134290553
&returnKind=xml
&includebookmetadata=false
&timeout_ms=10000

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      <url/>
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</PeprBooks>

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