@prefix pr: <http://www.wikidata.org/prop/reference/> .
@prefix wdref: <http://www.wikidata.org/reference/> .

wdref:774837d34ea9c32762ed35c99ee42eabc66ea8b5 pr:P854 <https://archive.org/details/heraldichistory01burk/page/59/mode/1up> .