Gaya APA

Gal, S. (2019). The Algebra Of Happiness Notes On The Pursuit Of Success, Love And Meaning (1). USA: Portofolio Penguin.

Gaya MLA

Gal, Scott. "The Algebra Of Happiness Notes On The Pursuit Of Success, Love And Meaning". 1 USA: Portofolio Penguin, 2019. Text.