Variant forms of title (1.7B4, 12.7B4, 9.7B4, 21.30J2; MARC 246)
Make notes on titles borne by the item other than the title proper (12.7B4.1, 9.7B4)
Make notes on titles by which the resource is commonly known if considered to be important (1.7B4, 12.7B4.1)
If considered important for access, make an added entry for any version of the title that is significantly different from the title proper (21.30J2 & LCRI)
Reminder: in MARC record 246 field can serve as both note and added title entry.