Cita APA (7th ed.)
Schaeffer, E. (1971). Hidden art. Tyndale House.
Cita Chicago (17th ed.)
Schaeffer, Edith. Hidden Art. Wheaton, Ill.: Tyndale House, 1971.
Cita MLA (9th ed.)
Schaeffer, Edith. Hidden Art. Tyndale House, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.