Talk:David Abraham Swanepoel
following two external links should be added to enwiki article of en:David Abraham Swanepoel (absent as of July 2020):
<ref name="san">{{cite web|title=Swanepoel, David Abraham (1912–1990) |url=http://www.sanbi.org/sites/default/files/documents/documents/bioseries16butterfly.pdf |website=SANBI Biodiversity Series 16 |page=6 |date=2010 |publisher=SANBI |accessdate=14 May 2016 |archiveurl=https://web.archive.org/web/20160409173400/http://www.sanbi.org/sites/default/files/documents/documents/bioseries16butterfly.pdf |archivedate=9 April 2016 }}</ref>
<ref name="henn">{{cite journal |last1=Henning |first1=Stephen |title=Obituary |journal=Metamorphosis |date=1991 |volume=2 |issue=1 |pages=5-6 |url=http://www.metamorphosis.org.za/articlesPDF/316/Metamorphosis%20Volume%202(1)_1-40%20Mar%201991.pdf |accessdate=14 May 2016}}</ref>