APA

Hay G., . (1967). This way to happiness: to help you appreciate anew the beauty and wonder of living. New York: Simon and Schuster.

Chicago

Hay Gilbert, . 1967. This way to happiness: to help you appreciate anew the beauty and wonder of living. New York: Simon and Schuster.

Harvard

Hay G., . (1967). This way to happiness: to help you appreciate anew the beauty and wonder of living. New York: Simon and Schuster.

MLA

Hay Gilbert, . This way to happiness: to help you appreciate anew the beauty and wonder of living. New York: Simon and Schuster. 1967.