Unfortunately, few styles actually dictate this. I remember one anthology from my undergrad days which handled things perfectly: side notes for vocabulary notes

Unfortunately, few styles actually dictate this. I remember one anthology from my undergrad days which handled things perfectly: side notes for vocabulary notes (it was an anthology of older English literary texts), footnotes for commentary, end notes for text source notes (there weren't really citations per se so much as indications about where the anthologized text came from and choices about which edition/manuscript was followed for the text).