Cita APA (7th ed.)
Powell, J. J. (1974). The secret of staying in love. Argus Communications.
Cita Chicago (17th ed.)
Powell, John Joseph. The Secret of Staying in Love. Niles, Ill.: Argus Communications, 1974.
Cita MLA (9th ed.)
Powell, John Joseph. The Secret of Staying in Love. Argus Communications, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.