APA (7th ed.) Citation

Golubnichy, D. (2017). Can you be happy for 100 days. Workman Publishing.

Chicago Style (17th ed.) Citation

Golubnichy, Dmitry. Can You Be Happy for 100 Days. New York: Workman Publishing, 2017.

MLA (9th ed.) Citation

Golubnichy, Dmitry. Can You Be Happy for 100 Days. Workman Publishing, 2017.

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