Cita APA (7th ed.)

Stewart, M. (1970). The crystal cave. Hodder & Stoughton.

Cita Chicago (17th ed.)

Stewart, Mary. The Crystal Cave. London: Hodder & Stoughton, 1970.

Cita MLA (8th ed.)

Stewart, Mary. The Crystal Cave. Hodder & Stoughton, 1970.

Atenció: Aquestes cites poden no estar 100% correctes.