APA (7th ed.) Citation

Lewis, C. S. (2017). Letters to Malcolm, chiefly on prayer (First edition.). HarperOne, An Imprint of HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Lewis, C. S. Letters to Malcolm, Chiefly on Prayer. First edition. San Francisco: HarperOne, An Imprint of HarperCollins Publishers, 2017.

MLA (8th ed.) Citation

Lewis, C. S. Letters to Malcolm, Chiefly on Prayer. First edition. HarperOne, An Imprint of HarperCollins Publishers, 2017.

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