APA (7th ed.) Citation

Maʻsúmián, F., Maʻsúmián, B., & Masumian, A. (2019). The secrets of true happiness. George Ronald.

Chicago Style (17th ed.) Citation

Maʻsúmián, Farnáz, Bijan Maʻsúmián, and Adib Masumian. The Secrets of True Happiness. Oxford: George Ronald, 2019.

MLA (8th ed.) Citation

Maʻsúmián, Farnáz, et al. The Secrets of True Happiness. George Ronald, 2019.