Cita APA (7th ed.)

Schaeffer, E. (1972). Hidden art. Tyndale house.

Cita Chicago (17th ed.)

Schaeffer, Edith. Hidden Art. Wheaton: Tyndale house, 1972.

Cita MLA (9th ed.)

Schaeffer, Edith. Hidden Art. Tyndale house, 1972.