APA (7th ed.) Citation

Barnhart, C. (2020). That's what friends do (First edition.). Harper.

Chicago Style (17th ed.) Citation

Barnhart, Cathleen. That's What Friends Do. First edition. New York, NY: Harper, 2020.

MLA (8th ed.) Citation

Barnhart, Cathleen. That's What Friends Do. First edition. Harper, 2020.

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