Sources : Ridpath, Ian & Tirion, Wil, ’Collins Guide to Stars & Planets’, Collins, 2007 & Bakich, Michael E. (editor), ‘Hubble’s Greatest Pictures’, Kalmbach, 2008.
外部連結
*[https://web.archive.org/web/20160304090256/http://www.ngc3532.com/ The Wishing Well Cluster]
*[https://web.archive.org/web/20090602200952/http://www.naturespeak.com.au/wishingwellcluster.htm Astrophotography Site Link]
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