Try this, but take out 'okwari' and replace it with your own?

<div class="ltwidget">
<img src="http://www.librarything.com/gwidget/widget.php?view=okwari&type=random&width=205&top=From my pile of books&bc=fff&ac=ccc&tc=272133&hc=262831&hbold=1&tbold=1"></div>