APA (7th ed.) Citation

Christe, A. (2008). The mystery of the blue train. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Christe, Agatha. The Mystery of the Blue Train. London: HarperCollins Publishers, 2008.

MLA (9th ed.) Citation

Christe, Agatha. The Mystery of the Blue Train. HarperCollins Publishers, 2008.

Warning: These citations may not always be 100% accurate.