Schneider, Stephen E.; Thuan, Trinh X.; Mangum, Jeffrey G.; Miller, John (Temmuz 1992). "Northern Dwarf and Low Surface Brightness Galaxies. II. The Green Bank Neutral Hydrogen Survey". Astrophysical Journal Supplement. Cilt 81. s. 5. Bibcode:1992ApJS...81....5S. doi:10.1086/191684.
harvard.edu
adsabs.harvard.edu
Schneider, Stephen E.; Thuan, Trinh X.; Mangum, Jeffrey G.; Miller, John (Temmuz 1992). "Northern Dwarf and Low Surface Brightness Galaxies. II. The Green Bank Neutral Hydrogen Survey". Astrophysical Journal Supplement. Cilt 81. s. 5. Bibcode:1992ApJS...81....5S. doi:10.1086/191684.
seds.org
spider.seds.org
"SEDS". Revised NGC Data for NGC 3212 (İngilizce). 29 Mart 2019 tarihinde kaynağından arşivlendi.