Referenslitteratur

1990-talet

1990:

Agatha Christie. The Woman and Her Mysteries 1990

Agatha Christie Trivia 1990

The Life and Crimes of Agatha Christie 1990¹

The Life and Times of Hercule Poirot 1990

1993:

The Poisonous Pen of Agatha Christie 1993

Black Sheep, Red Herrings and Blue Murder. The Proverbial Agatha Christie 1993 (Sprichwörterforschung Vol. 16)

1995:

The Lost Days of Agatha Christie. A Psychological Mystery 1995

1996:

Agatha Christie A to Z. The Essential Reference to Her Life & Writings 1996

What's Your Agatha Christie I.Q.? 1,001 Puzzling Questions About the World's Most Beloved Mystery Writer 1996

1997:

Agatha Christie. Writer of Mystery 1997

1999:

The World of Agatha Christie. The Facts and Fiction Behind the World's Greatest Crime Writer 1999

The Getaway Guide to Agatha Christie's England 1999

¹ En reviderad utgåva är sedermera utgiven under titeln The Life and Crimes of Agatha Christie. A Biographical Companion to the Works of Agatha Christie 2001.
   Not.! Originalutgåvan förekommer även i ett särskilt förhandsexemplar.