APA (7th ed.) Citation

Lewis, C. (1998). The nativity [poem]. World Mission.

Chicago Style (17th ed.) Citation

Lewis, C.S. "The Nativity [poem]." World Mission 1998.

MLA (9th ed.) Citation

Lewis, C.S. "The Nativity [poem]." World Mission, 1998.

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