Brook, P. (2017). Tip of the tongue. Nick Hern Books.
Chicago Style (17th ed.) ZitazioaBrook, Peter. Tip of the Tongue. London: Nick Hern Books, 2017.
MLA (9th ed.) ZitazioaBrook, Peter. Tip of the Tongue. Nick Hern Books, 2017.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.