APA (7th ed.) Citation

Carlson, N. L. (2008). Henry and the Valentine surprise. Viking.

Chicago Style (17th ed.) Citation

Carlson, Nancy L. Henry and the Valentine Surprise. New York: Viking, 2008.

MLA (8th ed.) Citation

Carlson, Nancy L. Henry and the Valentine Surprise. Viking, 2008.

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