How to access Thumbnails in XSLT from Picture Library

Can anyone help me? I would like to display the thumbnails from my picture library in my XSLT template I'm making. Here is the template so far.

<xsl:call-template name="OuterTemplate.CallPresenceStatusIconTemplate"/>             
  <figure>
    <figcaption>
       <h3><xsl:value-of select="@Title" disable-output-escaping="yes" /></h3>
       <span><xsl:value-of select="@Description" disable-output-escaping="yes" /></span>
       <span><xsl:value-of select="@ImageCreateDate" disable-output-escaping="yes" /></span>
       <span><xsl:value-of select="$GetThumbnail" /></span>
       <a href="#" data-lightbox="photo-gallery" title="View Image"></a>                                                             
     </figcaption>
   </figure>     
 </xsl:template>

Where and what code could I use to access the thumbnails? Many thanks