APA (7th ed.) Citation

Hoang, H. (2021). The heart principle. Berkley.

Chicago Style (17th ed.) Citation

Hoang, Helen. The Heart Principle. New York: Berkley, 2021.

MLA (8th ed.) Citation

Hoang, Helen. The Heart Principle. Berkley, 2021.

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