N or m? - Christie, Agatha 1890-1976. (London HarperCollins, 2001)
Originally published: Great Britain: Collins, 1941.
Keywords: Beresford, Tommy (Fictitious character) -- Fiction; Beresford, Tuppence (Fictitious character) -- Fiction; Private investigators -- England -- Fiction; Married people -- England -- Fiction; Detective and mystery stories; Domestic fiction