Παραπομπή APA

Dayal, K. (2010). How to be happy: Despite failures and frustrations. Read worthy.

Παραπομπή Chicago Style

Dayal, Keshav. How to Be Happy: Despite Failures and Frustrations. New Delhi: Read worthy, 2010.

Παραπομπή MLA

Dayal, Keshav. How to Be Happy: Despite Failures and Frustrations. Read worthy, 2010.