APA (7th ed.) Citation

Christie, A. (2011). Crooked house (First Harper paperback [edition].). William Morrow, An Imprint of HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Christie, Agatha. Crooked House. First Harper paperback [edition]. New York, N.Y.: William Morrow, An Imprint of HarperCollins Publishers, 2011.

MLA (8th ed.) Citation

Christie, Agatha. Crooked House. First Harper paperback [edition]. William Morrow, An Imprint of HarperCollins Publishers, 2011.

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