APA (7th ed.) Citation

Brown, M. W., & Long, L. (2017). Good day, good night. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Brown, Margaret Wise, and Loren Long. Good Day, Good Night. New York: HarperCollins Publishers, 2017.

MLA (9th ed.) Citation

Brown, Margaret Wise, and Loren Long. Good Day, Good Night. HarperCollins Publishers, 2017.