<sod>* There is a orchestral score called ''To Catch a Heffalump'' (1971) by Willem Frederik Bon.<ref>{{cite web|title=To catch a heffalump, for orchestra (1971).|url=http://www.worldcat.org/title/to-catch-a-heffalump-for-orchestra-1971/oclc/19557428|website=WorldCat|publisher=Donemus|date=1 January 1971}}</ref><eod>
<sod>* There is an orchestral score called ''To Catch a Heffalump'' (1971) by Willem Frederik Bon.<ref>{{cite web|title=To catch a heffalump, for orchestra (1971).|url=http://www.worldcat.org/title/to-catch-a-heffalump-for-orchestra-1971/oclc/19557428|website=WorldCat|publisher=Donemus|date=1 January 1971}}</ref><eod>