Cita APA (7th ed.)

Grace, E. (1967). Return to happiness. Wright & Brown.

Cita Chicago (17th ed.)

Grace, Evelyn. Return to Happiness. London: Wright & Brown, 1967.

Cita MLA (8th ed.)

Grace, Evelyn. Return to Happiness. Wright & Brown, 1967.

Atenció: Aquestes cites poden no estar 100% correctes.