$def with (isbn)
$# Template entry point for Google Books
$# e.g. /show-records/google_books:0803226616
$var title: $_("Record details of") google_books:$isbn

<div id="contentHead">
    <h1>$_("Record details of") google_books:$isbn</h1>
</div>

<div id="contentBody">
    <p>$:_('This record came from') <a href="https://www.googleapis.com/books/v1/volumes?q=isbn:$isbn">https://www.googleapis.com/books/v1/volumes?q=isbn:$isbn.</p>
</div>