AAVSO circular
APA Citation
American Association of Variable Star Observers., American Association of Variable Star Observers. AAVSO circular. [Cambridge, Mass.]: American Association of Variable Star Observers.
MLA Citation
American Association of Variable Star Observers, and American Association of Variable Star Observers. AAVSO Circular. [Cambridge, Mass.]: American Association of Variable Star Observers,
Warning: These citations may not always be complete (especially for serials).