<script type="text/javascript" src="https://www.google.com/books/jsapi.js"></script>
<div>test simple example from official developer google webpage ... https://developers.google.com/books/docs/viewer/developers_guide</div>
<div>test to show how to add the source code to the codepen.io web interface ...</div>
<div id="viewerCanvas" style="width: 600px; height: 500px"></div>
  
google.books.load();
function initialize() {
var viewer = new google.books.DefaultViewer(document.getElementById('viewerCanvas'));
        viewer.load('ISBN:0738531367');
      }
google.books.setOnLoadCallback(initialize);

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