APA (7th ed.) Citation

Handy, C. (2020). 21 Letters on Life and Its Challenges. Windmill Books.

Chicago Style (17th ed.) Citation

Handy, Charles. 21 Letters on Life and Its Challenges. London: Windmill Books, 2020.

MLA (9th ed.) Citation

Handy, Charles. 21 Letters on Life and Its Challenges. Windmill Books, 2020.

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