Proper punctuation in abbreviation of Nota Bene [closed]
Which of the following are "correct" ways to abbreviate Nota Bene?
- N.B. blahblah
- n.b. blahblah
- NB. blahblah
- nb. blahblah
- NB: blahblah
- nb: blahblah
- NB blahblah
- nb blahblah
- (etc.)
Authoritative sources would be much appreciated.
The Chicago Manual of Style says:
NB, n.b. nota bene, take careful note (capitals are illogical but often used for emphasis)
CMS adds that "Latin abbreviations are often set in roman" (i.e. not italic).
I tend to see
NB: The Smiley Police are lurking.
"...whom, n.b., I had never seen."