Related Clues:

• Common abbr. in Bartlett's
• Any minute, to old poets
• Quote book abbr
• Dead right, in due course!
• Unknown author: Abbr
• 'Author unknown' byline
• "Auth. unknown" byline
• "Author unknown" byline, briefly
• 'I'll send for you ___': Othello
• In a bit, old-style
• Unknown, as a writer: Abbr
• Sooner or later, one good book is just the one for me
• In a short time, quaintly
• Like most Internet trolls: Abbr
• By deadline